Sea cucumbers spend their lives prowling the ocean floor, scavenging for food and generally minding their own business. We can see snails leading similar lives, slimy but not bothering anyone.

Ring Species: Salamanders: Some critics of the theory of evolution argue that it doesn't convincingly explain the origin of new species. They say that members of one species couldn't become so ...

The Endangered Species Act worked. Thanks to the legislation and the way it has been enforced, today we have the opportunity to watch soaring bald eagles in the lower 48, see gray whales migrate ...

The United States’s Endangered Species Act (ESA), signed into law in 1973, has helped revive the populations of nearly 300 species.. The ESA protects animals that are classified under federal ...

The survival of more than 3,500 animal species is in jeopardy thanks to the impacts of climate change, a new study has found. This threat applies to at least a quarter of the species in six ...