An orca mother gave birth to a calf a few days ago, but researchers now believe that calf has died. Here’s why this is particularly sad news.

A woman observing some orcas from her paddleboard got a bit more than she bargained for when the animals wanted to investigate. Watch here.

Three friends were stunned when an orca exploded from the water while hunting a smaller dolphin. See the incredible video here.

A wildlife photographer captured a rare sight off the coast of Hokkaido, Japan—two white orcas swimming with their pod. See them here.

A video from an organization that studies orca acoustics and movements using hydrophones and cameras is both eerie and beautiful.

Nature can be brutal, especially predator-prey interactions. Watch orcas hunt smaller dolphins by head-butting them mid-air here.

Researchers say orcas are hunting down more large sharks, including great white sharks, turning these top predators into prey.

A New Zealand man leapt from a boat in an attempt to “body slam” an orca . . . on purpose. The New Zealand government was not amused.

Orcas rammed a sailing yacht in the Strait of Gibraltar, eventually sinking the boat. Two people were onboard during the attack.

Orcas are truly the ocean’s top predators. Have scientists discovered a new orca species? A new paper makes a compelling case.