Across Montana’s eastern plains, few sights register as strongly as a bison herd navigating open grassland. Although the ...

Blue blood may look alien, but it’s one of evolution’s most elegant solutions to life in extreme environments. Here’s how ...

New photos from Afghanistan show a Taliban law banning images of people and animals is now being enforced across most of the ...

These "total monsters of fishes" are extinct today, though new clues about their lives come from CT scans and their closest ...

Red blood is the exception, not the rule. Evolution has painted it green, purple and white in animals that push physiology ...

While late M-stars are the easiest places to find Earth-sized planets, a new study suggests they are biological dead ends where animal life may never find enough fuel to evolve.

Animals have evolved crab-like bodies at least five times throughout history, a process known as carcinization.

Every year, scientists add thousands of new names to the great book of life. This momentum was initiated by the work of ...

Biologists are confronting a problem they thought they had mostly solved: what, exactly, counts as life. A wave of ...

Despite being mammals, these remarkably cancer-resistant animals share a lot in common with cold-blooded species.