The “groundbreaking observation” contributes to “the limited understanding of both Orca predatory ... with an underwater camera from a distance of about 50 feet — of orcas hunting down ...

Orcas make similar tail strikes underwater—death knells for herring, said Tiu Similä, a cetacean biologist who helped pioneer the study of orcas in Norway and is an expert on an orca hunting ...

The TV special, featuring marine wildlife expert Dickie Chivell, explores the disappearance of great white sharks from the species' once popular hunting ... discovered with orca bite marks and ...

Chief researcher Yuuki Watanabe from the National Institute of Polar Research in Tokyo said the team was amazed to discover that the bird adapts its hunting behaviour depending on what it is ...

The episode, witnessed off the Australian coast, offers a rare glimpse into the brutal efficiency of the ocean’s top predator.

Our current knowledge of orca – killer whales – has been greatly ... Yet, most of orcas’ lives occur underwater and therefore out-of-sight. Because it’s much more difficult to study ...

The Extra Large Unmanned Underwater Vehicle (XLUUV ... reach and lethality of our manned fleet.” Orca also has other potential uses, such as hunting Chinese submarines. The American strategy ...

Students study the vocalizations, hunting techniques and social behaviors of four communities of orcas and discuss whether, due to their differences, they can be considered different cultures.