exoskeleton

Wildlife home diagram for a bumblebee nest showing a wooden box full of hay or straw, in a hole under a stone with a pipe for access

Yellow meadow ant Lasius flavus carrying an egg across the dirt

American lobster Homarus americanus pair with male with large claw and long red antennae in the foregrouf, female behind, colouration as when alive

White clawed crayfish Austropotamobius pallipes very simplifies line and wash drawing showing the crusatcean in profile