• Season: 30 Episode: 1
• Release: 2011
• Length: 52

What happens to nature after a nuclear accident? And how does wildlife deal with the world it inherits after human inhabitants have fled the area? ...

• Season: 1 Episode: 5
• Release: 2009
• Length: 59

Birds descend from dinosaurs who developed feathers. Those allow most of them to fly, which few other vertebrates can. Some birds gave up flying, like...

• Season: 1 Episode: 2
• Release: 2009
• Length: 59

Though they may seem primitive, reptiles and amphibians still thrive thanks to diverse survival strategies. In Venezuela, a pebble toad evades a taran...

• Season: 1 Episode: 1
• Release: 2009
• Length: 59

The opening episode introduces the series by showing examples of extraordinary feeding, hunting, courting and parenting behaviour from across the anim...