Animals are finely adapted to their native habitats, but when they are introduced to other ecosystems, they can become ...

Whales are a group of mammals that live in oceans. They include some of the largest animals on Earth. The blue whale is the ...

Gaylene Thomas, a wildlife care manager at the San Diego Zoo, oversees two teams that care for a variety of species, ...

Larger species face higher cancer risks but those that reached that size rapidly evolved mitigating mechanisms.

A major review of over 67,000 animal species has found that while the natural world continues to face a biodiversity crisis, targeted conservation efforts are helping bring many species back from the ...