Most of us learned about butterfly metamorphosis as a kid — a wriggly caterpillar molts its skin to form a tough chrysalis and emerges as a beautiful butterfly. But how exactly do chrysalises stay ...

The Sacramento Mountains checkerspot butterfly is critically endangered, with the last known larva living in a lab in New ...

Papilio is an enthusiastic and adventurous caterpillar. Then she's a blob of goo, hanging out in her chrysalis. Her main goal in life? Metamorphose into a butterfly and learn to fly! Papilio is a ...