Sex-pest guppies: Having invaded the territory of another fish species, guppies have taken to sexually harassing and possibly even maiming resident females. Researchers believe the guppies are using sex as a way of suppressing the native fish population.
Zombie caterpillars: 2008 saw the discovery of two odd animals: a parasitoid wasp that specialises in manipulative behaviour and a zombie caterpillar. Having partially developed inside them, the wasp larvae chemically manipulate the caterpillars into acting as zombie bodyguards, with some impressive moves to boot.
World’s only lungless frog: The Barbourula kalimantanensis, a little frog with big eyes, has no lungs and gets all the oxygen it needs through its skin.