When we think of dolphins, we often picture sleek gray animals that are about ten feet long. However, the biggest dolphins in the world are more than twice that size– and they might look different that you’d expect. The world’s largest dolphins are actually orcas, also known as killer whales.

Orcas reach lengths of up to 26 feet and can weigh up to six thousand pounds– more than a rhinoceros. Orcas are apex predators, meaning that they are hunters that live at the top of the food chain. They eat fish, seals, and even other dolphins!

Photo by Christopher Michel