Meet nature's most wanted and see why the baddest of the bad don't get the respect they deserve. Admire the great white shark's electrical sensors, the razor-sharp limbs of the dead leaf mantis, and the zombie-creating powers of cordyceps fungi.

Step into the ring with nature's top brawlers, who use violence to get what they need. Watch the cannibalistic Portia spider devour the competition, uncover the bloodthirsty side of cuddly koalas, and catch an epic neck-whipping giraffe battle.