![Animal](https://image.chilimovie.com/region2/en/300px/20230823/dTUzqX7Ude2JskIBQVgldRLEaaS.jpg)
Dolphins use their intelligence to form complex undersea societies, come up with resourceful hunting techniques - and indulge in their dark side.
To rule some of the planet's most hostile lands, bears can't lean solely on brute force: it takes both brains and brawn to reach the top.