The monster beetle...

The brown and yellow Pachnoda sinuata, a species of beetle from South Africa, feeds on overripe fruit and roses, and has a very interesting shell pattern to ward off predators.

The beetles are thought to exhibit animal mimicry - viewed from behind, the colours and patterns on their shells create a clever illusion of a small monstrous animal with wide eyes and big teeth.

The fact that the shells have evolved to have this resemblance suggests that there is a selective advantage to being able to imitate an animal with teeth, perhaps the birds which prey on Pachnoda sinuata mistake the beetles for a different animal, or perhaps the display is confusing.