The two shapes in the sand in last week’s curiosity box were made by the lug worm which makes a U shaped burrow in the sand. It feeds on the tiny animals that live on sand grains. It eats sand and this makes the hollow. When it has eaten the living things in the sand it releases the sand from its body as the coil you see close by.

This week, do you know the name of this living thing on a dead piece of wood?

What is this curiosity living on some dead wood?

What is this curiosity living on some dead wood?