E1
A look at how some animals and plants go to extremes to give themselves a chance to breed.
E2
A look at the strategies used by reptiles and amphibians to conquer their shortcomings.
E3
How mammals dominate the planet through having warm blood and by caring for their young.
E4
A look at various fish species including sea dragon, fringehead and Hawaiian goby.
E5
A slow-motion camera captures the unique flight of the Marvellous Spatuletail Hummingbird.
E6
Super-slow motion shows a bombardier beetle firing boiling liquid at its enemies.
E7
Unique footage of a killer whale engaging in sneaky behaviour to hunt elephant seal pups.
E8
A look at marine invertebrates, including Humboldt squid, starfish and giant octopuses.
E9
A look at plants and the ingenious and manipulative ways they counter life's challenges.
E10
Primates are just like humans - intelligent, quarrelsome, family-centred.