Rat Brains Learn To Predict Rewards

Rats are sporting tiny, sci-fi-esque goggles in the name of science. The result: In addition to providing some pretty cute images, the fashionable rats have revealed that parts of the brain related to vision also help animals predict future rewards. An animal's ability to predict events is vital for avoiding Read more

By Tanya Lewis, ago

Ancient Bird's Feathers Had Iridescent Glow

Nanostructures preserved in feather fossils more than 40 million years old show evidence that those feathers were once vivid and iridescent in color, paleontologists say. Iridescence is the quality of changing color depending on the angle of observation — it's what makes you see a rainbow in an oil slick. Read more

By Staff, ago