Orcas are endlessly fascinating creatures. Their antics have been the focus of the internet's interest in recent years. Now, they're hunting whale sharks.

For the first time, scientists have captured video evidence of orcas cooperatively hunting whale sharks, the largest species of fish on Earth. This graphic footage proves that whale sharks are a regular part of some orcas’ diets, and solves the mystery of how they are able to kill the massive fish.