Mudslinging wasps
© Alamy
The female black-and-yellow mud dauber is a master of animal architecture. Using her jaws, the wasp drags the mud to the site that will become her home. Then the wasp uses her saliva to mould it. Mud dauber wasps typically hunt spiders and lay eggs in their bodies. The wasp then stuffs the spiders into individual holes for the larvae to feast on when they hatch, capping the holes with more mud.