Butterflies in Space

There are at least four objects in the heavens that have been named after butterflies: Three planetary nebulae and a loose cluster of stars.

Evolving Metamorphosis: A Hopeless Task

Your job is to explain insect metamorphosis in evolutionary terms. What will you say? We can learn from the example of two geneticists who basically said the process is “evolutionarily conserved” — that is, not evolved!