Marine biologists in Iceland have observed a remarkable phenomenon where orcas are adopting baby pilot whales, challenging our understanding of their behavior and offering a new perspective on their interactions with other species.
Benevolent Orcas Pods Are Adopting Baby Pilot Whales in an Apparent Effort to Clean Up the Species’ Image.
Orcas, also known as killer whales, are the largest predatory marine mammals.
They can grow up to 32 feet in length and weigh over 12,000 pounds.
There are two distinct populations of orcas: resident and transient.
Resident orcas feed on fish, squid, and other marine animals, while transients prey on other marine mammals.
Orcas have a complex social structure and communicate using clicks and whistles.
A remarkable observation has been made by marine biologists in Iceland, where orcas have been adopting baby pilot whales. This behavior is being studied in a new paper published in the journal Ecology and Evolution.
The Adoption of Baby Pilot Whales
In 2022, researchers from the Icelandic Orca Project were conducting interviews with Scientific American when they first spotted a calf that would change their understanding of orcas‘ behavior. Initially, they thought the calf was a malformed orca, but after further observation, it became clear that it was not. The next day, the baby pilot whale was absent, but by 2023, researchers were consistently seeing pilot whales with orca pods.
Theories on the Adoption
Chérine Baumgartner and her team have proposed three theories about this phenomenon:
- Hunting: Orcas might be hunting pilot whales, although this seems unlikely given their playful behavior.

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Play: The orcas could be playing with the babies, nudging them along with their bodies and occasionally lifting them out of the water to play a game of underwater ‘tag.’
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Nurturing: The adult females might be nurturing the pilot whales, perhaps even adopting them as part of their social unit.
Orcas, also known as killer whales, are highly social and intelligent marine mammals.
They live in complex societies with distinct social hierarchies and communicate using a variety of clicks, whistles, and body language.
In the wild, orcas hunt cooperatively, working together to catch prey such as fish, seals, and other marine animals.
In captivity, they have been observed exhibiting self-awareness and problem-solving skills.
Theories on Coexistence
Researchers are also curious about how two species that generally do not overlap ended up coexisting in such a way. Climate change could have led to pilot whales venturing into orca territory, where they were initially encountered by the orcas and either played with or adopted as part of their social unit.
Coexistence refers to the state of living together in harmony with others, often in a shared environment.
It involves mutual respect, understanding, and tolerance for differences.
In history, coexistence has been practiced by various cultures, such as ancient civilizations that accepted diverse beliefs and practices.
Today, coexistence is essential in modern societies, where people from different backgrounds interact closely.
Studies show that countries with high levels of coexistence tend to have lower conflict rates and improved economic growth.
The Adoption: A New Perspective
This remarkable observation challenges our understanding of orcas‘ behavior and offers a new perspective on their interactions with other species. By studying this phenomenon, researchers can gain insights into the complex relationships between different marine animals and how they adapt to changing environmental conditions.