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Photo: AWeith via Wikimedia Commons . Distributed under a CC BY-SA 4.0 license. Life at the Earth’s poles is brutally cold. Yet animals still make their homes. . . Read More

A calling male túngara frog with a large inflated vocal sac. Credit: Adam Dunn A new study reports that city frogs sing more complex and attractive songs than their country cousins. Urban frogs can get away with producing more conspicuous mating calls, which are preferred by. . . Read More

Italian wall lizards possess a few traits that contribute to their success as an invasive species. One, they tend to use trees and human structures as refuges, leading to accidental transportation. Two, they are adaptable when it comes to habitat use, being found in natural. . . Read More

If you roll an alligator on its back and hold it there, it will exhibit a strange behavior. After 15 or 20 seconds, the alligator will go limp and become unresponsive. It’s called tonic immobility and, for a phenomenon so widespread in the animal kingdom, we know surprisingly. . . Read More

Addiction and depression are mental health disorders with biological origins in the brain. They are also public health challenges with serious consequences. Unfortunately, today’s treatments for addiction and depression are inadequate for many patients. Continued basic research. . . Read More