Leopard seals rank among the largest seal species on Earth, with adult females reaching nearly 12 feet in length and weighing more than 1.3K pounds. They possess long canine teeth, powerful jaws that ...

Biologists have seen signs of orca-on-orca predation in the North Pacific, and such cannibalism may explain why some orcas travel in large family groups. Two distinct subspecies of orcas, also called ...