1Apes
Smart, sensitive and family-oriented, our wild ape relatives rely on each other to learn - and redefine - the secrets of survival.
2Birds of Prey
Curved talons, hooked beaks, killer eyesight: these aerial assassins have the most sophisticated tools for hunting prey at their disposal.
3Bears
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.
4Dolphins
Dolphins use their intelligence to form complex undersea societies, come up with resourceful hunting techniques - and indulge in their dark side.