A chrysalis needs to be perfect when a caterpillar or silkworm prepares to transform from pupae to winged adults. Since the insect can’t emerge until it has completely matured, any overlooked ...

I talked about your question with my friend Allan Felsot. He’s an insect scientist at Washington State University. He told me cocoons are mostly silk. But they’re usually made by moths. A butterfly ...

A Jeremy Hemberger, department of entomology at the University of Wisconsin-Madison: Caterpillars start out as tiny creatures. In the beginning they eat lots of food — just like the book “The Very ...