The Serengeti is one of the most biologically diverse areas on earth--but it's also the scene of some of the most important fossil discoveries ever made. Join us as we meet the modern inhabitants of this ancient land, and track how their evolution helped shape our understanding of human origins.
Our body is a true time machine. It is a mirror of the history of the living world. If an engineer today had to fabricate the ideal human, he would most likely not design us the way we are currently made. He would go to the most logical, the most efficient, the most rational; and when you look closely, this is not always what characterizes us.
When you're a baby zebra, muskox, or pronghorn, there is no shortage of predators eyeing you as their next meal. From learning defensive herding to early sprinting skills, these vulnerable newborns hit the ground running with keen survival instincts.
David Attenborough tells the revealing story of this Caribbean island's exotic but vulnerable wildlife. A team of conservation champions are making it their mission to save the most precious species. We see how Puerto Rican parrots, manatees and turtles are now making a comeback.