Sleep is an essential part of animal biology, yet its ecological aspects such as predator avoidance remain understudied, especially in the wild. Sleep behaviour is likely to be subject to selection ...

A group of scientists from the Sleep Team at the Lyon Neuroscience Research Center in France has concluded that lizards dream just like we do and that they also have two sleep states which is ...

Global change processes such as urbanization are likely to affect sleep behavior, by altering abiotic (e.g., thermal and illumination) and biotic conditions (e.g., predation pressure) that influence ...

When you stop to think about it, the idea that most mammals lose consciousness for a few hours each night is pretty strange. But sleep’s long evolutionary history serves as a testament to how ...

Scientists who studied a small, transparent fish believe the way humans sleep could have evolved 450 million years ago. When mammals, along with birds and lizards, sleep, scientists think they ...

As a battle for territory unfolds between two different species of lizards invasive to Florida, a team of University of Florida scientists is trying to determine what it could mean for public health.

Learn why living in a city makes a certain species of lizard more social, revealing an effect of urbanization on animal behavior. For some animals, living in the big city makes socializing a lot ...

Invasive Nile monitors in Georgia have been labeled the largest and most dangerous lizards in the U.S. Where are they? How dangerous are they?