Orca group seen hunting ocean's largest predators: researchers

A group of 49 orcas has been seen hunting sperm whales, elephant seals, dolphins and even a leatherback turtle, according to a peer-reviewed study published in the journal Aquatic Mammals last week.

Orca group seen hunting ocean's largest predators: researchers
A group of killer whales swim in open waters.

A group of 49 orcas has been seen hunting sperm whales, elephant seals, dolphins and even a leatherback turtle, according to a peer-reviewed study published in the journal Aquatic Mammals last week.