Discovers how weirdness is baked into some animals' DNA from birth; the team check out the bowerbird's mate-attracting dance moves.

Looks at the abilities that give some animals an edge in life, including fireflies' flashes, the tarsier's night vision, the mantis shrimp's knockout punch, and the saltwater croc's prey-detecting pressure sensors.

Presents nature's most wanted to see why some species don't get the respect they deserve, including the great white shark's electrical sensors, the razor-sharp limbs of the dead leaf mantis, and the zombie-creating powers of cordyceps fungi.

Explore the partnership between clownfish and anemones, watch oxpeckers keep savannah residents healthy, and review the agreements of dung beetles and pitcher plants.

Watch the cannibalistic Portia spider devour the competition, uncover the bloodthirsty side of cuddly koalas and catch an epic giraffe battle.

Gangs battle for dominance as their lives become a constant struggle; locusts swarm, stripping landscapes bare; the coconut octopus ambushes prey.