"When a caterpillar enters a chrysalis and becomes a butterfly, it doesn't just sprout wings and legs. It essentially disintegrates into goo, and a new butterfly is built from that.

But that's not the weirdest part. The weirdest part is that it's possible to teach something to that caterpillar, and after it becomes goo and then re-forms as a butterfly, it still remembers what you taught it."