Fluffy crab wearing a sponge as a hat

Sponge crabs find sea sponges (and co.), trim the creatures using their claws, and wear them like hats. (Trimming them doesn't kill them – the creatures keep growing, but now they grow in a shape that fits the crab better.)

The hats protect them and camouflage them from anything looking down on them from above. They have "hind legs that are specially adapted for holding their protective hats."

Source: https://www.theguardian.com/australi...
Via: https://thewhippet.org/149-gett...