Tooth rake marks on an adult male orca's dorsal fin indicate fighting or rough play with other killer whales, said animal behavior scientist Charli Grimes of the UK's University of Exeter.

Older, "post-menopausal" orca mothers protect their adult sons from fights, according to new research. The study examined tooth rake marks on the animals' bodies - inflicted in confrontations with ...

The research drew on 50 years of orca surveys conducted off the Pacific coast by the Center for Whale Research in Washington State.The photographs of 103 killer whales showed which swam together and ...

Monika Wieland Shields, co-founder and director, Orca Behavior Institute; Episode credits: This episode was produced by Chloe K. Li with Sonia Bhagat and our host Malika Bilal.

An adult male orca with tooth rake marks. Credit. COPYRIGHT David Ellifrit, Center for Whale Research. Usage Restrictions. Credit must be given to the creator.

Eyewitness footage shows an orca attacked by another killer whale at SeaWorld. Following the release of the footage, PETA called on the USDA to investigate SeaWorld. SeaWorld described the ...

Rather than physically intervene, scientists say orca mums may act as mediators to resolve potential scraps and keep their young out of trouble. Thursday 20 July 2023 16:36, UK ...

An endangered Pacific Northwest orca that made global headlines in 2018 for carrying her dead calf for over two weeks is doing so once again following the death of her new calf, in another sign of ...