Weird caterpillar uses its old heads to make an elaborate hat | New Scientist 2020-07-07 Leave a Comment on Weird caterpillar uses its old heads to make an elaborate hat | New Scientist Meet the mad hatterpillar, the invertebrate that keeps its old moulted heads attached to its body to make a beautifully bizarre headpiece Source: Weird caterpillar uses its old heads to make an elaborate hat | New Scientist