Directors Jared Bush and Byron Howard explain the highly collaborative process by which Disney's animated blockbuster came together.

Chinchillas, docile South American rodents with big, round ears and soft, thick fur, are about as sensitive to sounds as humans. That’s one reason why medical researchers use them to study hearing ...

Relatives of the humble sea sponge have filtered Earth's waters for hundreds of millions of years or more, long before the first plants took to land. Their simplicity has led scientists to suggest ...