Walking With Beasts - Ep 5 Sabre Tooth (2001) [576p]

For years, South America was separate from the rest of the world. The animals that evolved were unlike those found elsewhere on Earth. South America was characterized by giant "terror birds" like Phorusrhacos, Macrauchenia - a camel-like animal - and herbivores such as the Doedicurus. But 2.5 million years ago, a land bridge connected North and South America and allowed North American predators to invade. Among them was Smilodon, the largest saber-tooth cats ever, and the new top predator.