Above, the real deal; below, the clay models used to test predators' reactions to local and foreign frog markings. Sometimes, you have to make a thousand frogs from modelling clay to make your point.

The colorful markings of poison dart frogs vary depending on where the frogs live. Now, a new study using thousands of fake-frog decoys finds that these markings evolved hyper-locally, explaining why ...

Natural selection has played a role in the development of the many skins patterns of the tiny Ranitomeya imitator poison dart frog, according to a study that will be published in an upcoming edition ...