Surprisingly, genome comparisons have failed to resolve a major question in animal evolution: Which living animals are the descendants of the earliest animals to evolve in the world's oceans?

How do you get an elephant to exercise, safely introduce two songbirds or prepare a cheetah for a veterinary exam? In this series, get an insider’s look at how animal keepers use activities, food, ...

Nonhuman animals (animals) are constantly "talking" with one another using sounds, smells, visual signals, and various combinations thereof. In his fascinating new book titled Why Animals Talk: The ...

Exotic animals, farm animals, and domestic animals might not share many traits in common, but one thing that they all share is the fact that they exhibit stereotypic behaviors when in captivity. Let’s ...

Arianna is a freelance writer and animal welfare advocate. She hopes to inspire others to... Arianna is a freelance writer and animal welfare advocate. She hopes to inspire others to make this world a ...

For more than a century, biologists have wondered what the earliest animals were like when they first arose in the ancient oceans over half a billion years ago. Searching among today’s most ...