{"id":187416,"date":"2025-12-16T11:21:08","date_gmt":"2025-12-16T11:21:08","guid":{"rendered":"https:\/\/www.newsbeep.com\/il\/187416\/"},"modified":"2025-12-16T11:21:08","modified_gmt":"2025-12-16T11:21:08","slug":"killer-whales-and-dolphins-hunt-together-in-a-rare-alliance","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/il\/187416\/","title":{"rendered":"Killer whales and dolphins hunt together in a rare alliance"},"content":{"rendered":"

\"AerialKiller whales and dolphins have been spotted hunting together. Here\u2019s a dolphin (top) with a pod of northern resident killer whales. Image via University of British Columbia (A.Trites)\/ Dalhousie University (S. Fortune)\/ Hakai Institute (K. Holmes)\/ Leibniz Institute for Zoo\/ Wildlife Research (X. Cheng)\/ EurekAlert!<\/a> (CC BY<\/a>).
\nKiller whales and dolphins hunt together in a rare alliance<\/p>\n

For the first time, researchers have documented killer whales and dolphins cooperatively hunting together. Researchers from the University of British Columbia said<\/a> on December 11, 2025, that they observed the killer whales and dolphins during fieldwork in the waters off British Columbia, Canada, in August 2020. It\u2019s the first confirmed scientific evidence of these two species working together during foraging. And it\u2019s a remarkable example of inter-species teamwork in the wild.<\/p>\n

Sarah Fortune<\/a> of the University of British Columbia led the groundbreaking study. The researchers published<\/a> their study in the peer-reviewed<\/a> journal Scientific Reports on December 11, 2025.<\/p>\n

From coexistence to collaboration<\/p>\n

Marine biologists have long seen Pacific white-sided dolphins swimming close to killer whales in the waters off British Columbia. Until now, scientists lacked proof that the animals collaborated rather than merely tolerated each other. Fortune\u2019s team tracked movements, recorded underwater video and acoustic signals and flew aerial drones to examine how the species interacted while searching for prey.<\/p>\n

\nScientists recorded these species underwater and from the air. In this video, you can see how the killer whales change their direction to follow the dolphins. And the dolphins look back to make sure the killer whales are following them. Video via Sarah Fortune et al<\/a>. (CC BY 4.0<\/a>).
\nTracking killer whale movements and dolphin signals<\/p>\n

The researchers followed nine northern resident killer whales, a population known for strong social bonds and a reliance on salmon. They observed 25 instances in which these killer whales changed course after encountering Pacific white-sided dolphins and then followed them on foraging dives. The researchers suggested that killer whales may quiet their own vocalizations to listen for the dolphins\u2019 echolocation <\/a>clicks, which could help them detect Chinook salmon (Oncorhynchus tshawytscha<\/a>), a prey too large for dolphins to capture and swallow whole.<\/p>\n

During the same observation period, the researchers documented eight cases of killer whales catching, eating and sharing Chinook salmon with other killer whales, while dolphins were present for four of these events. In one notable instance, dolphins scavenged the remains of an adult salmon that the killer whales had broken into smaller pieces, which the authors interpreted as intentional prey sharing rather than random scavenging.<\/p>\n

These observations suggest killer whales might actively coordinate their hunting with dolphins. They use the dolphins\u2019 sonar to improve prey detection, while dolphins gain access to food scraps too large for them to catch alone. The absence of aggression between the species further supports the idea of inter-species cooperation.<\/p>\n

\nDolphins use echolocation <\/a>to find fish. Killer whales follow the dolphins, who lead them to the salmon (a treat for the killer whales). Video via Sarah Fortune et al<\/a>. (CC BY 4.0<\/a>).
\nWhy cooperation benefits both killer whales and dolphins<\/p>\n

The researchers suggested that the partnership benefits both animals. Killer whales gain improved prey detection, while dolphins gain access to food scraps and may also gain some protection from transient killer whale groups. The authors stressed the need for future studies to determine how often and how consistently this behavior occurs.<\/p>\n

\"12Killer whales find salmon thanks to dolphins, and dolphins get to eat smaller pieces of salmon that otherwise would be too big for them. Image via Sarah Fortune et al.<\/a> (CC BY 4.0<\/a>).
\nWhales and dolphins: A broader pattern of intelligence and play<\/p>\n

This collaboration fits into a larger pattern of whale intelligence and social flexibility. Humpback whales, for example, blow bubble rings, a behavior many scientists interpret as a possible way to communicate with humans.<\/p>\n

Read more: Humpback whales communicate with us using \u201csmoke\u201d rings<\/a><\/p>\n

Humpbacks also use highly coordinated hunting strategies such as bubble-net feeding, in which groups trap fish inside bubble nets. Scientists consider this a \u201ctool\u201d that humpbacks use because of how they manipulate it to their purposes.<\/p>\n

Read more: Humpback whales manufacture and wield tools<\/a><\/p>\n

Beyond hunting, humpback whales frequently engage in playful interactions with dolphins, including synchronized swimming, breaching and gentle physical contact. These observations suggest that complex social curiosity may occur across whales and dolphins more broadly.<\/p>\n

Read more: Do whales and dolphins play together? Images and video here<\/a><\/p>\n

What this discovery means for ocean science<\/p>\n

The newly documented partnership between killer whales and Pacific white-sided dolphins demonstrates a level of cooperation that scientists rarely observe between apex predators and smaller marine mammals. As researchers continue to study these interactions, they may uncover even more examples of collaboration in the ocean, thus reshaping how we understand marine ecosystems and the intelligence of the animals that inhabit them.<\/p>\n

Bottom line: Killer whales and dolphins have been observed hunting together, sharing prey and skills in a rare and remarkable display of inter-species cooperation.<\/p>\n

Source: Cooperative foraging between dolphins and fish-eating killer whales<\/a><\/p>\n

Via EurekAlert!<\/a><\/p>\n

Read more: Killer whales make tools to scratch each other\u2019s backs<\/a><\/p>\n

Read more: Killer whales take 1 breath between dives<\/a><\/p>\n

Cristina Ortiz
\n View Articles<\/a><\/p>\n

About the Author:<\/p>\n

Cristina Ortiz – based in Granada, Spain – is EarthSky’s defender of animals with her “lifeform” videos at EarthSky\u00a0YouTube. Discover the most fascinating facts about all the beings with whom we share Earth. Are you ready for the adventure? Cristina has been an EarthSky.org editor since 2021. She has a master\u2019s degree in translation and interpreting, specializing in science and technology. “Since I was a kid,” she says, “I could feel that passion for science and communication.”<\/p>\n","protected":false},"excerpt":{"rendered":"Killer whales and dolphins have been spotted hunting together. Here\u2019s a dolphin (top) with a pod of northern…\n","protected":false},"author":2,"featured_media":187417,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[1744,85,46,141,386],"class_list":{"0":"post-187416","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-wildlife","8":"tag-earth","9":"tag-il","10":"tag-israel","11":"tag-science","12":"tag-wildlife"},"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/il\/wp-json\/wp\/v2\/posts\/187416","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/il\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/il\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/il\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/il\/wp-json\/wp\/v2\/comments?post=187416"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/il\/wp-json\/wp\/v2\/posts\/187416\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/il\/wp-json\/wp\/v2\/media\/187417"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/il\/wp-json\/wp\/v2\/media?parent=187416"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/il\/wp-json\/wp\/v2\/categories?post=187416"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/il\/wp-json\/wp\/v2\/tags?post=187416"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}