Tagged killer whale

Video: Orcas hunt and kill tiger shark off Cocos Island

Vimeo user Edwar HerreƱo recently added a video documenting six killer whales (Orcinus orca) hunting a tiger shark (Galeocerdo cuvier) off Cocos Island. The orcas appear to use a team effort to huntand appear and then drown the shark in the video. The video description says that the orcas fed on the shark after killing it.

Video: Orca (killer whale) attacks sharks off New Zealand coast

The ITN News YouTube channel recently posted amateur video featuring a killer whale (Orcinus orca) attacking what appear to be broadnose sevengill sharks (Notorynchus cepedianus). The video was shot off the coast of New Zealand’s Blue Cliffs Beach, Tuatapere. One of the sharks beached itself, presumably to escape the orca.

Clinton Duffy, a marine scientist interviewed by ITN News, said that he expected that more orcas were present further from the shore and that the orca in the surf was likely trying to flush fish off shore for the other killer whales.

British Columbia orcas feed on sleeper sharks

A recent study has found that orcas off of B.C. feed on Pacific sleeper sharks.

The Vancouver Sun is reporting that a new study shows through DNA evidence that offshore orcas (or killer whales) feed on Pacific sleeper sharks (Somniosus pacificus). The study was recently published in the journal of Aquatic Biology (Vol 11, No. 3).

According to the study, this is the first confirmed prey species of offshore killer whales, as well as the first record of Pacific sleeper sharks being prey items of orcas. Researchers believe that the abrasive skin of the Pacific sleeper shark is wearing the teeth of the orcas flat.

For more about the study, check out the full article at The Vancouver Sun.

Video: Orca rams great white shark

Australian FX artist Greg McKee recently posted the above video to his YouTube channel, which features what appears to be a composite of “live-action” white shark footage and a computer-generated orca.

McKee work was featured in the animated film “Happy Feet,” in which he worked on the orca animation sequences. To check out more of his work head on over to Greg McKee’s website.