Science Orcas are wearing salmon as hats – again Gail Sherman

Science Yacht-attacking orcas are just typical teenagers Gail Sherman

orcas Idiot attempts to "body slam" endangered killer whale (video) David Pescovitz

Science Orcas that grab baby porpoises and play with them to death Ruben Bolling

Science The bad news: orcas are teaching their young to ram boats. The good news: it's just a game Rob Beschizza

orcas Orca rams boat… 2,000 miles from the prior killer whale attacks David Pescovitz

orcas Orcas toss yacht 'like a rag doll' in Gibraltar Strait attack Rusty Blazenhoff

animal behavior Researchers ponder why orcas attack boats Gareth Branwyn

Science Orcas have learned how to kill great white sharks, to remove and eat their livers Ruben Bolling

Science Orcas now teaching each other to ram and capsize boats Ruben Bolling

bbc Nerve-wracking footage of orcas hunting a seal Rusty Blazenhoff

Science Livestream killer whale songs and other ocean sounds David Pescovitz

animals Watch delighted swimmers flee from curious killer whale David Pescovitz

video Watch as orcas charge a blue whale, probably just for kicks Andrea James

video Humpback whales sure love ruining orcas' hunting Andrea James

Nature Seal leaps onto boat to escape orcas Rob Beschizza

animal rights SeaWorld promises to acquire no new orcas Rob Beschizza

orcas SeaWorld to end orca shows in San Diego Rob Beschizza

Delightful Creatures Penguin gets a surfing lesson when it jumps on instructor's bodyboard (video) Carla Sinclair

dolphins Horny dolphin blamed for incident that left 18 people injured Thom Dunn