There are lots of species of poison dart frogs and they come in lots of colors and patterns, even within the same species. Their colors are advertisements to predators: don’t eat me! you’ll be sorry!
For ScienceNOW last week, I wrote about an experiment that figured out a little bit of how poison dart frogs stay so diverse.
It seems like poison dart frogs shouldn’t be so diverse, because if you’re the frogs, it seems like it would make more sense to just give the predators one warning to learn. But that’s not how it works. Read all about it.
photo: Mathieu Chouteau