A rhesus macaque on Cayo Santiago, which is less than a mile east of Puerto Rico. Rhesus macaques spend upwards of 20 percent of their time engaged in cooperative behaviors like grooming. Andi ...

We talk about what an ear even is, how ears have evolved, how they work, and some of the cool ways animals have tweaked their ears to work for their lifestyle. We talk about what an ear even is, how ...

Each animal species has an optimal temperature at which it can metabolise food and its immune system can best fight off pathogens. As our recent research shows, temperature directly affects the immune ...

Unlike humans, frogs and other amphibians don't need to rely on their lungs to breathe; their unique skin helps them exchange oxygen and drink. But how do frogs breathe and drink through their skin?

Philosopher Susana Monsó's book Playing Possum, newly translated into English next month, makes the strong case that many animals big and small understand the concept of death. Reading time 8 minutes ...

While an increasingly small number of people, especially academic researchers, try to argue that nonhuman animals (animals) don’t really make friends, most people, including both researchers and ...