Scientists have long focused on quantifying fear and other negative emotions in animals. Now they’re trying to measure positive feelings — and it’s a challenge.

If animals clocked in as we do, half of us would already be late. Many of them run on tighter routines than humans ever ...

Nature is full of surprises, but few are as fascinating as hybrid animals, creatures born from crossing two different species ...

Some animals produce their own light, no special effects involved. In certain cases, it helps them hunt or avoid predators.

While the majority of animals (humans included) roam the Earth, some of nature’s most fascinating creatures spend their lives ...

City environments subject animals to noise, light, crowding, and fragmented habitats that subtly but powerfully reshape how they communicate.

Climate change has a wide range of effects on wildlife. It affects seasonal migration, reproduction times, body size and mass ...

The Smithsonian’s National Zoo and Conservation Biology Institute is home to more than 2,200 animals. We followed zookeepers to see what it takes to feed them.

Enjoy our cross-curricular unit on hibernating animals, designed to engage young learners in the incredible ways animals ...

Owning an exotic animal in Tennessee requires getting proper permits and setting up quality care. Read this before taking ...