In an exceptionally rare footage, a drone camera captured two adult killer whales feasting on two still-wriggling young sharks in California’s Monterey Bay.

The heart-shaking footage was recorded by Slater Moore using a drone camera. Moore was on a whale watch tour in the area with a group under the company Monterey Bay Whale Watch.

Moore was aboard the SeaWolfe II when he noticed that the killer whales were tearing into something. When he flew his drone to see what was going on there, he saw that two young sharks were being eaten by the killer whales.

When asked for a comment, marine biologist Katlyn Taylor said, “And all of a sudden one of them brought it up, brought up the whole shark — and it was still alive, it was squirming around … A living shark is the most badass baby food on the planet.”

The offshore killer whales make an appearance in Monterey Bay around this time every year. Where they spend rest of the year is still a mystery. But, these huge marine creatures have been spotted all the way from California to Alaska.

The two shark calves were identified as sevengill sharks. This is the only commonly known member of the cowshark family that is found in shallow waters. Other members prefer to live in deep waters. It can grow up to 3 meters in length and 107 kilograms in weight with a lifespan of up to fifty years.