Arquivo da tag: Baleias

When Whales and Humans Talk (Hakai Magazine)

Arctic people have been communicating with cetaceans for centuries—and scientists are finally taking note.

Tattooed Whale, 2016 by Tim Pitsiulak. Screen-print on Arches Cover Black. Reproduced with the permission of Dorset Fine ArtsApril 3rd, 2018

Harry Brower Sr. was lying in a hospital bed in Anchorage, Alaska, close to death, when he was visited by a baby whale.

Although Brower’s body remained in Anchorage, the young bowhead took him more than 1,000 kilometers north to Barrow (now Utqiaġvik), where Brower’s family lived. They traveled together through the town and past the indistinct edge where the tundra gives way to the Arctic Ocean. There, in the ice-blue underwater world, Brower saw Iñupiat hunters in a sealskin boat closing in on the calf’s mother.

Brower felt the shuddering harpoon enter the whale’s body. He looked at the faces of the men in the umiak, including those of his own sons. When he awoke in his hospital bed as if from a trance, he knew precisely which man had made the kill, how the whale had died, and whose ice cellar the meat was stored in. He turned out to be right on all three counts.

Brower lived six years after the episode, dying in 1992 at the age of 67. In his final years, he discussed what he had witnessed with Christian ministers and Utqiaġvik’s whaling captains. The conversations ultimately led him to hand down new rules to govern hunting female whales with offspring, meant to communicate respect to whales and signal that people were aware of their feelings and needs. “[The whale] talked to me,” Brower recalls in a collection of his stories, The Whales, They Give Themselves. “He told me all the stories about where they had all this trouble out there on the ice.”

Not long ago, non-Indigenous scientists might have dismissed Brower’s experience as a dream or the inchoate ramblings of a sick man. But he and other Iñupiat are part of a deep history of Arctic and subarctic peoples who believe humans and whales can talk and share a reciprocal relationship that goes far beyond that of predator and prey. Today, as Western scientists try to better understand Indigenous peoples’ relationships with animals—as well as animals’ own capacity for thoughts and feelings—such beliefs are gaining wider recognition, giving archaeologists a better understanding of ancient northern cultures.

“If you start looking at the relationship between humans and animals from the perspective that Indigenous people themselves may have had, it reveals a rich new universe,” says Matthew Betts, an archaeologist with the Canadian Museum of History who studies Paleo-Eskimo cultures in the Canadian Arctic. “What a beautiful way to view the world.”


It’s not clear exactly when people developed the technology that allowed them to begin hunting whales, but scholars generally believe Arctic whaling developed off the coast of Alaska sometime between 600 and 800 CE. For thousands of years before then, Arctic people survived by hunting seals, caribou, and walruses at the edge of the sea ice.

One such group, the Dorset—known in Inuit oral tradition as the Tunitwere rumored to have been so strong the men could outrun caribou and drag a 1,700-kilogram walrus across the ice. The women were said to have fermented raw seal meat against the warmth of their skin, leaving it in their pants for days at a time. But despite their legendary survival skills, the Tunit died out 1,000 years ago.An Inuit hunter sits on a whale that’s been hauled to shore for butchering in Point Hope, Alaska, in 1900. Photo by Hulton Deutsch/Getty Images

An Inuit hunter sits on a whale that’s been hauled to shore for butchering in Point Hope, Alaska, in 1900. Photo by Hulton Deutsch/Getty Images

One theory for their mysterious disappearance is that they were outcompeted by people who had begun to move east into the Canadian Arctic—migrants from Alaska who brought sealskin boats allowing them to push off from shore and hunt whales. Each spring, bowhead whales weighing up to 54,000 kilograms pass through the leads of water that open into the sea ice, and with skill and luck, the ancestors of today’s Inuit and Iñupiat people could spear a cetacean as it surfaced to breathe.

The advent of whaling changed the North. For the first time, hunters could bring in enough meat to feed an entire village. Permanent settlements began springing up in places like Utqiaġvik that were reliably visited by bowheads—places still inhabited today. Social organizations shifted as successful whale hunters amassed wealth, became captains, and positioned themselves at the top of a developing social hierarchy. Before long, the whale hunt became the center of cultural, spiritual, and day-to-day life, and whales the cornerstone of many Arctic and subarctic cosmologies.

When agricultural Europeans began visiting and writing about the North in the 10th century, they were mesmerized by Aboriginal peoples’ relationships with whales. Medieval literature depicted the Arctic as a land of malevolent “monstrous fishes” and people who could summon them to shore through magical powers and mumbled spells. Even as explorers and missionaries brought back straightforward accounts of how individual whaling cultures went about hunting, butchering, and sharing a whale, it was hard to shake the sense of mysticism. In 1938, American anthropologist Margaret Lantis analyzed these scattered ethnographic accounts and concluded that Iñupiat, Inuit, and other northern peoples belonged to a circumpolar “whale cult.”

Lantis found evidence of this in widespread taboos and rituals meant to cement the relationship between people and whales. In many places, a recently killed whale was given a drink of fresh water, a meal, and even traveling bags to ensure a safe journey back to its spiritual home. Individual whalers had their own songs to call the whales to them. Sometimes shamans performed religious ceremonies inside circles made of whale bones. Stashes of whaling amulets—an ambiguous word used to describe everything from carved, jewelry-like charms to feathers or skulls—were passed from father to son in whaling families.

To non-Indigenous observers, it was all so mysterious. So unknowable. And for archaeologists and biologists especially, it was at odds with Western scientific values, which prohibited anything that smacked of anthropomorphism.
A whaler waits for the bowhead whales from shore in Utqiaġvik, Alaska, during whaling season in the Chukchi Sea. Photo by Steven J. Kazlowski/Alamy Stock Photo

A whaler waits for the bowhead whales from shore in Utqiaġvik, Alaska, during whaling season in the Chukchi Sea. Photo by Steven J. Kazlowski/Alamy Stock Photo

In archaeology, such attitudes have limited our understanding of Arctic prehistory, says Erica Hill, a zooarchaeologist with the University of Alaska Southeast. Whaling amulets and bone circles were written off as ritualistic or supernatural with little exploration of what they actually meant to the people who created them. Instead, archaeologists who studied animal artifacts often focused on the tangible information they revealed about what ancient people ate, how many calories they consumed, and how they survived.

Hill is part of a burgeoning branch of archaeology that uses ethnographic accounts and oral histories to re-examine animal artifacts with fresh eyes—and interpret the past in new, non-Western ways. “I’m interested in this as part of our prehistory as humans,” Hill says, “but also in what it tells us about alternative ways of being.”


The idea that Indigenous people have spiritual relationships with animals is so well established in popular culture it’s cliché. Yet constricted by Western science and culture, few archaeologists have examined the record of human history with the perspective that animals feel emotions and can express those emotions to humans.

Hill’s interest in doing so was piqued in 2007, when she was excavating in Chukotka, Russia, just across the Bering Strait from Alaska. The site was estimated to be 1,000 to 2,000 years old, predating the dawn of whaling in the region, and was situated at the top of a large hill. As her team dug through the tundra, they uncovered six or seven intact walrus skulls deliberately arranged in a circle.

Like many archaeologists, Hill had been taught that ancient humans in harsh northern climates conserved calories and rarely expended energy doing things with no direct physical benefit. That people were hauling walrus skulls to a hilltop where there were plenty of similar-sized rocks for building seemed strange. “If you’ve ever picked up a walrus skull, they’re really, really heavy,” Hill says. So she started wondering: did the skulls serve a purpose that wasn’t strictly practical that justified the effort of carrying them uphill?

When Hill returned home, she began looking for other cases of “people doing funky stuff” with animal remains. There was no shortage of examples: shrines packed with sheep skulls, ceremonial burials of wolves and dogs, walrus-skull rings on both sides of the Bering Strait. To Hill, though, some of the most compelling artifacts came from whaling cultures.

Museum collections across North America, for instance, include a dazzling array of objects categorized as whaling amulets. From this grab bag, Hill identified 20 carved wooden objects. Many served as the seats of whaling boats. In the Iñupiaq language, they’re called either iktuġat or aqutim aksivautana, depending on dialect.

One in particular stands out. Hill was looking for Alaskan artifacts in a massive climate-controlled warehouse belonging to Smithsonian’s National Museum of Natural History in Washington, DC. The artifacts were housed in hundreds of floor-to-ceiling drawers, row after row of them, with little indication of what was inside. She pulled open one drawer and there it was—the perfect likeness of a bowhead whale staring back at her.

The object, likely from the late 19th century, probably functioned as a crosspiece. It was hewn from a hunk of driftwood into a crescent shape 21 centimeters long. Carved on one side was a bowhead, looking as it would look if you were gazing down on a whale from above, perhaps from a raven’s-eye perspective. A precious bead of obsidian was embedded in the blowhole. “It’s so elegant and simple but so completely whale,” Hill says. “It’s this perfect balance of minimalism and form.”

Sometime in the late 19th century, an Iñupiat carver fashioned this seat for an umiak out of driftwood, carving the likeness of a bowhead whale, its blowhole symbolized with a piece of obsidian. Photo by Department of Anthropology, Smithsonian Institute (Cat. A347918)Sometime in the late 19th century, an Iñupiaq carver fashioned this amulet for an umiak out of driftwood, carving the likeness of a bowhead whale, its blowhole symbolized with a piece of obsidian. As with other whaling amulets Erica Hill has examined, this object may have also functioned as part of the boat’s structure. Photo by Department of Anthropology, Smithsonian Institute (Cat. A347918)

Using Iñupiat oral histories and ethnographies recorded in the 19th and 20th centuries, Hill now knows that such amulets were meant to be placed in a boat with the likeness of the whale facing down, toward the ocean. The meticulously rendered art was thus meant not for humans, but for whales—to flatter them, Hill says, and call them to the hunters. “The idea is that the whale will be attracted to its own likeness, so obviously you want to depict the whale in the most positive way possible,” she explains.

Yupik stories from St. Lawrence Island tell of whales who might spend an hour swimming directly under an umiak, positioning themselves so they could check out the carvings and the men occupying the boat. If the umiak was clean, the carvings beautiful, and the men respectful, the whale might reposition itself to be harpooned. If the art portrayed the whale in an unflattering light or the boat was dirty, it indicated that the hunters were lazy and wouldn’t treat the whale’s body properly. Then the whale might swim away.

In “Sounding a Sea-Change: Acoustic Ecology and Arctic Ocean Governance” published in Thinking with Water, Shirley Roburn quotes Point Hope, Alaska, resident Kirk Oviok: “Like my aunt said, the whales have ears and are more like people,” he says. “The first batch of whales seen would show up to check which ones in the whaling crew would be more hospitable. … Then the whales would come back to their pack and tell them about the situation.”

The belief that whales have agency and can communicate their needs to people isn’t unique to the Arctic. Farther south, on Washington’s Olympic Peninsula and British Columbia’s Vancouver Island, Makah and Nuu-chah-nulth whalers observed eight months of rituals meant to communicate respect in the mysterious language of whales. They bathed in special pools, prayed, spoke quietly, and avoided startling movements that might offend whales. Right before the hunt, the whalers sang a song asking the whale to give itself.

In Makah and Nuu-chah-nulth belief, as in many Arctic cultures, whales weren’t just taken—they willingly gave themselves to human communities. A whale that offered its body wasn’t sentencing itself to death. It was choosing to be killed by hunters who had demonstrated, through good behavior and careful adherence to rituals, that they would treat its remains in a way that would allow it to be reborn. Yupik tradition, for example, holds that beluga whales once lived on land and long to return to terra firma. In exchange for offering itself to a Yupik community, a beluga expected to have its bones given the ritualistic treatment that would allow it to complete this transition and return to land, perhaps as one of the wolves that would gnaw on the whale’s bones.

According to Hill, many of the objects aiding this reciprocity—vessels used to offer whales a drink of fresh water, amulets that hunters used to negotiate relationships with animal spirits—weren’t just reserved for shamanistic ceremonies. They were part of everyday life; the physical manifestation of an ongoing, daily dialogue between the human and animal worlds.


While Westerners domesticated and eventually industrialized the animals we eat—and thus came to view them as dumb and inferior—Arctic cultures saw whale hunting as a match between equals. Bipedal humans with rudimentary technology faced off against animals as much as 1,000 times their size that were emotional, thoughtful, and influenced by the same social expectations that governed human communities. In fact, whales were thought to live in an underwater society paralleling that above the sea.

a bowhead whale swimming amid multi-layer sea ice

It’s difficult to assess populations of animals that swim under the ice, far from view, like bowhead whales. But experienced Iñupiat whalers are good at it. Photo by Steven Kazlowski/Minden Pictures

Throughout history, similar beliefs have guided other human-animal relationships, especially in hunter-gatherer cultures that shared their environment with big, potentially dangerous animals. Carvings left behind by the Tunit, for example, suggest a belief that polar bears possessed a kind of personhood allowing them to communicate with humans; while some Inuit believed walruses could listen to humans talking about them and react accordingly.

Whether or not those beliefs are demonstrably true, says Hill, they “make room for animal intelligence and feelings and agency in ways that our traditional scientific thinking has not.”

Today, as archaeologists like Hill and Matthew Betts shift their interpretation of the past to better reflect Indigenous worldviews, biologists too are shedding new light on whale behavior and biology that seems to confirm the traits Indigenous people have attributed to whales for more than 1,000 years. Among them is Hal Whitehead, a professor at Dalhousie University in Nova Scotia who argues that cetaceans have their own culture—a word typically reserved for human societies.

By this definition, culture is social learning that’s passed down from one generation to the next. Whitehead finds evidence for his theory in numerous recent studies, including one that shows bowhead whales in the North Pacific, off the Alaskan coast, and in the Atlantic Ocean near Greenland sing different songs, the way human groups might have different styles of music or linguistic dialects. Similarly, pods of resident killer whales living in the waters off south Vancouver Island greet each other with different behaviors than killer whales living off north Vancouver Island, despite the fact that the groups are genetically almost identical and have overlapping territories.

Plus, calves spend years with their mothers, developing the strong mother-offspring bonds that serve to transfer cultural information, and bowhead whales live long enough to accumulate the kind of environmental knowledge that would be beneficial to pass on to younger generations. We know this largely because of a harpoon tip that was found embedded in a bowhead in northern Alaska in 2007. This particular harpoon was only manufactured between 1879 and 1885 and wasn’t used for long after, meaning that the whale had sustained its injury at least 117 years before it finally died.

Other beliefs, too, are proving less farfetched than they once sounded. For years, scientists believed whales couldn’t smell, despite the fact that Iñupiat hunters claimed the smell of woodsmoke would drive a whale away from their camp. Eventually, a Dutch scientist dissecting whale skulls proved the animals did, indeed, have the capacity to smell. Even the Yupik belief that beluga whales were once land-dwelling creatures is rooted in reality: some 50 million years ago, the ancestor of modern-day whales walked on land. As if recalling this, whale fetuses briefly develop legs before losing them again.

An Inuit hunter sits on a whale that’s been hauled to shore for butchering in Point Hope, Alaska, in 1900. Photo by Hulton Deutsch/Getty ImagesInuit hunters in Utqiaġvik, Alaska, paddle an umiak after a bowhead whale. Photo by Galen Rowell/Getty Images

None of this suggests that whales freely give themselves to humans. But once you understand the biological and intellectual capabilities of whales—as whaling cultures surely did—it’s less of a leap to conclude that cetaceans live in their own underwater society, and can communicate their needs and wishes to humans willing to listen.


With the dawn of the 20th century and the encroachment of Euro-Americans into the North, Indigenous whaling changed drastically. Whaling in the Makah and Nuu-chah-nulth Nations essentially ended in the 1920s after commercial whalers hunted the gray whale to near extinction. In Chukotka, Russian authorities in the 1950s replaced community-based whaling with state-run whaling.

Even the whaling strongholds of Alaska’s Iñupiat villages weren’t immune. In the 1970s, the International Whaling Commission ordered a halt to subsistence bowhead whaling because US government scientists feared there were just 1,300 of the animals left. Harry Brower Sr. and other whaling captains who’d amassed lifetimes of knowledge knew that figure was wrong.

But unlike other whaling cultures, Iñupiat whalers had the means to fight back, thanks to taxes they had collected from a nearby oil boom. With the money, communities hired Western-trained scientists to corroborate traditional knowledge. The scientists developed a new methodology that used hydrophones to count bowhead whales beneath the ice, rather than extrapolating the population based on a count of the visible bowheads passing by a single, ice-free locale. Their findings proved bowheads were far more numerous than the government had previously thought, and subsistence whaling was allowed to continue.

Elsewhere, too, whaling traditions have slowly come back to life. In 1999, the Makah harvested their first whale in over 70 years. The Chukchi were allowed to hunt again in the 1990s.

Yet few modern men knew whales as intimately as Brower. Although he eschewed some traditions—he said he never wanted his own whaling song to call a harpooned whale to the umiak, for exampleBrower had other ways of communicating with whales. He believed that whales listened, and that if a whaler was selfish or disrespectful, whales would avoid him. He believed that the natural world was alive with animals’ spirits, and that the inexplicable connection he’d felt with whales could only be explained by the presence of such spirits.

And he believed that in 1986, a baby whale visited him in an Anchorage hospital to show him how future generations could maintain the centuries-long relationship between humans and whales. Before he died, he told his biographer Karen Brewster that although he believed in a Christian heaven, he personally thought he would go elsewhere. “I’m going to go join the whales,” he said. “That’s the best place, I think. … You could feed all the people for the last time.”

Perhaps Brower did become a whale and feed his people one last time. Or perhaps, through his deep understanding of whale biology and behavior, he passed down the knowledge that enabled his people to feed themselves for generations to come. Today, the spring whaling deadline he proposed based on his conversation with the baby whale is still largely observed, and bowhead whales continue to sustain Iñupiat communities, both physically and culturally.

Correction: This article has been updated to clarify the original purpose of the whaling amulet that caught Erica Hill’s attention in the Smithsonian warehouse.


Author bio Krista Lee Langlois is an independent journalist, essayist, and “aquaphile.” She lived in the Marshall Islands in 2006 and now writes about the intersection of people and nature from a landlocked cabin outside Durango, Colorado.

Killer whales learn to communicate like dolphins (Science Daily)

Date: October 7, 2014

Source: Acoustical Society of America (ASA)

Summary: The sounds that most animals use to communicate are innate, not learned. However, a few species, including humans, can imitate new sounds and use them in appropriate social contexts. This ability, known as vocal learning, is one of the underpinnings of language. Now, researchers have found that killer whales can engage in cross-species vocal learning: when socialized with bottlenose dolphins, they shifted the sounds they made to more closely match their social partners.

Killer whales (Orcinus orca) can engage in cross-species vocal learning: when socialized with bottlenose dolphins, they shifted the types of sounds they made to more closely match their social partners. Credit: © RKP / Fotolia

From barks to gobbles, the sounds that most animals use to communicate are innate, not learned. However, a few species, including humans, can imitate new sounds and use them in appropriate social contexts. This ability, known as vocal learning, is one of the underpinnings of language.

Vocal learning has also been observed in bats, some birds, and cetaceans, a group that includes whales and dolphins. But while avian researchers have characterized vocal learning in songbirds down to specific neural pathways, studying the trait in large marine animals has presented more of a challenge.

Now, University of San Diego graduate student Whitney Musser and Hubbs-SeaWorld Research Institute senior research scientist Dr. Ann Bowles have found that killer whales (Orcinus orca) can engage in cross-species vocal learning: when socialized with bottlenose dolphins, they shifted the types of sounds they made to more closely match their social partners. The results, published in The Journal of the Acoustical Society of America, suggest that vocal imitation may facilitate social interactions in cetaceans.

Killer whales have complex vocal repertoires made up of clicks, whistles and pulsed calls — repeated brief bursts of sound punctuated with silence. The acoustic features of these vocalizations, such as their duration, pitch and pulse pattern, vary across social groups. Whales that are closely related or live together produce similar pulsed calls that carry vocal characteristics distinct to the group, known as a dialect.

“There’s been an idea for a long time that killer whales learn their dialect, but it isn’t enough to say they all have different dialects so therefore they learn. There needs to be some experimental proof so you can say how well they learn and what context promotes learning,” said Bowles.

Testing vocal learning ability in social mammals usually requires observing the animal in a novel social situation, one that might stimulate them to communicate in new ways. Bottlenose dolphins provide a useful comparison species in this respect: they make generally similar sounds but produce them in different proportions, relying more on clicks and whistles than the pulsed calls that dominate killer whale communication.

“We had a perfect opportunity because historically, some killer whales have been held with bottlenose dolphins,” said Bowles. By comparing old recordings of vocalization patterns from the cross-socialized subjects with recordings of killer whales and bottlenose dolphins housed in same-species groups, Bowles and her team were able to evaluate the degree to which killer whales learned vocalization patterns from their cross-species social partners.

All three killer whales that had been housed with dolphins for several years shifted the proportions of different call types in their repertoire to more closely match the distribution found in dolphins — they produced more clicks and whistles and fewer pulsed calls. The researchers also found evidence that killer whales can learn completely new sounds: one killer whale that was living with dolphins at the time of the experiment learned to produce a chirp sequence that human caretakers had taught to her dolphin pool-mates before she was introduced to them.

Vocal learning skills alone don’t necessarily mean that killer whales have language in the same way that humans do. However, they do indicate a high level of neural plasticity, the ability to change circuits in the brain to incorporate new information. “Killer whales seem to be really motivated to match the features of their social partners,” said Bowles, though the adaptive significance of the behavior is not yet known.

There are immediate reasons to study the vocal patterns of cetaceans: these marine mammals are threatened by human activities through competition for fishery resources, entanglement in fishing gear, collisions with vessels, exposure to pollutants and oil spills and, ultimately, shrinking habitats due to anthropogenic climate change. If their social bonds are closely linked to their vocalizations, killer whales’ ability to survive amidst shifting territories and social groups may be tied to their ability to adapt their communication strategies.

“It’s important to understand how they acquire [their vocalization patterns], and lifelong, to what degree they can change it, because there are a number of different [cetacean] populations on the decline right now,” said Bowles. “And where killer whales go, we can expect other small whale species to go — it’s a broader question.”


Journal Reference:

  1. Whitney B. Musser, Ann E. Bowles, Dawn M. Grebner, and Jessica L. Crance.Differences in acoustic features of vocalizations produced by killer whales cross-socialized with bottlenose dolphins. The Journal of the Acoustical Society of America, 2014 DOI: 10.1121/1.4893906

Proposed California Law Would Free SeaWorld’s Orcas (WIRED)

BY BRANDON KEIM
03.07.14

Orcas performing at SeaWorld San Diego. Image: z2amiller/Flickr

Orcas performing at SeaWorld San Diego. Image: z2amiller/Flickr

A California lawmaker has proposed a ban on keeping killer whales in captivity for purposes of human entertainment.

Announced today by Assemblyman Richard Bloom, D-Santa Monica, the Orca Welfare and Safety Act would outlaw SeaWorld-style shows, as well as captive breeding of the creatures. Violations would be punished by $100,000 in fines, six months in jail, or both.

No hearing has yet been scheduled on the proposal, which will require a majority vote to pass through legislature. It’s also unclear how much support the bill will have, though California has passed progressive animal legislation in the recent past, including bans on shark fin soup and hunting bears with dogs.

“There is no justification for the continued captive display of orcas for entertainment purposes,” Bloom said in a public statement. “These beautiful creatures are much too large and far too intelligent to be confined in small, concrete tanks for their entire lives. It is time to end the practice of keeping orcas captive for human amusement.”

Bloom’s proposed law isn’t the first of its kind: South Carolina banned the public display of dolphins in 1992, as did Maui County, Hawaii in 2002. In February of this year, New York state senator Greg Ball introduced a bill that would ban orca confinement in sea parks and aquariums.

Unlike those states, however, California is home to SeaWorld San Diego, where 10 orcas — roughly one-fifth of all captive orcas — are used in performances. “This is a huge state in which to have that ban,” said Lori Marino, a neurobiologist and founder of the Kimmela Center for Animal Advocacy.

In recent years, the experience of captive orcas has come under scrutiny by animal advocates and some scientists, who say that aquarium conditions are simply inappropriate for animals as big, intelligent and highly social as orcas.

As evidence, advocates point to the physical and mental problems of orcas in captivity: They’re short-lived, prone to disease, have difficulty breeding, display extreme aggression and in some cases appear to be emotionally disturbed.

Such was the case with Tillikum, an orca at SeaWorld Orlando who killed three people, including SeaWorld trainer Dawn Brancheau. Her death and SeaWorld’s orcas were the subject of Blackfish, a 2013 documentary that inspired Bloom’s measure, which was written with assistance from Blackfishdirector Gabriela Cowperthwaite and Naomi Rose of the Animal Welfare Institute.

SeaWorld San Diego did not reply to requests for comment, but in a statement, spokesman David Koontz criticized Bloom for “associating with extreme animal rights activists.”

Koontz said the bill reflected the “the same sort of out-of-the-mainstream thinking” as an infamous lawsuit, filed by People for the Ethical Treatment of Animals and dismissed in 2012, which invoked the United States Constitution’s slavery-abolishing 13th amendment as grounds for freeing SeaWorld’s orcas.

“We engage in business practices that are responsible, sustainable and reflective of the balanced values all Americans share,” wrote Koontz.

Andrew Trites, head of the University of British Columbia’s Marine Mammal Research Unit, said that misgivings about keeping whales and dolphins in captivity are not restricted to activists and extremists. They’re something many scientists grapple with.

“We think about this a lot,” he said, “I do understand the strong feelings of those who think it’s entirely wrong. I also understand the value of keeping them in captivity.”

Studying captive orcas can provide information about health and physiology that’s otherwise difficult to obtain, and can be used to benefit wild orcas, said Trites. “But it has to be about more than just entertainment,” he said. “They have to be serving some greater good.”

Marino noted that the bill allows research on orcas held for rehabilitation after being rescued from injury or stranding. Those orcas couldn’t be kept in aquariums, though, but rather in enclosed, shallow-water sea pens that are open to the public — a compromise, perhaps, between greater-good benefits and individual well-being.

Orcas now kept at SeaWorld would be returned to the wild or, if that’s not possible, also kept in sea pens.

If Bloom’s bill passes, it could inspire other such measures, said Marino. “The science is so overwhelming that members of the legislature are convinced, and are putting this out there,” she said. “This is historic.”