I watched this show on Discovery last night and talked about the mammals that lived here after the dinosaurs and talk about humongous beasts! I can only recognize two animals, the saber-tooth cat and the mammoth. I can say only those two names. The rest.... there was a whale that used to live on land with legs and a tail. And a big rhino-like animal without the horns. And the horses! The people made it look so real. Really cool!