Spiders and insects are often considered pests. Some people would rather see the creepy-crawly creatures dead than buzzing ...

What makes an animal invasive, and which species are causing the most destruction across North America? A species is ...

Due to its vast size — stretching from Canada and Greenland in the north, to Mexico in the south — North America contains a vast range of habitats. From land to sea, there are forests, mountains, ...

Moose, elk, and bear are now able to cross a 6-lane highway in Colorado, thanks to the Greenland Wildlife Overpass—North America’s largest.

While North America might have the largest population of pet cats, it’s home to only six native species of wild cats. Unfortunately, deforestation and human interference have caused a decline in North ...

A rogue mushroom is ripping through North American forests, after escaping from cultivation. As it runs riot, mushroom ...

Add Yahoo as a preferred source to see more of our stories on Google. On Saturday we showcased the extraordinary speed of North American pronghorn, with footage that showed the animals easily ...

(Gary Braasch / Corbis) When Polynesians arrived at the uninhabited Hawaiian Islands thousands of years ago, they found an array of colorful tree snails, each less than an inch in length, across the ...

An insidious disease has eliminated dozens of the world’s frog species. Scientists fear a similar plague could be coming for ...