North America, with its variety of climates and landscapes, is home to some pretty amazing and incredible animals. From the Arctic of Greenland and Canada, the grasslands, deserts, forests ...

A research team has identified a new species of tiger swallowtail butterfly living in eastern parts of North America. In ...

There are over 150 different species of firefly in North America, and each has its own characteristic flash code. Male fireflies use their glow to attract females and, in some areas at certain ...

But humans living in ice age North America had to deal with the real thing. Dire wolves (Canis dirus) were a canine species that hunted the plains and forests. They were similar to modern grey ...

The annual migration of purple martins from Brazil to Pennsylvania has started. Here's what to know about these birds.

Are wild horses truly “wild,” as an indigenous species in North America, or are they “feral weeds”—barnyard escapees, far removed genetically from their prehistoric ancestors? The question at hand is, ...

Mixodectes pungens, a species of small mammal that inhabited western North America in the early Paleocene, was a mystery. What little was known about them had been mostly gleaned from analyzing ...

North America is the third largest continent in ... They have thick bark and keep their leaves in winter. Animals have also adapted to live in the taiga forest. The Canadian lynx has wide paws ...

The southeast United States is a place of unparalleled aquatic biodiversity, harboring 493 fishes (62% of U.S. fish species), at least 269 mussels (91% of U.S. mussel species), and 241 dragonflies and ...

Need a break? Play the USA TODAY Daily Crossword Puzzle. Coyote: A nocturnal species of canine native to North America. Coyotes are predators that normally hunt and travel alone or in loose pairs.