Our planet now faces a global extinction crisis never witnessed by humankind. Scientists predict that more than 1 million species are on track for extinction in the coming decades. But there’s still ...

DESCRIPTION: The relict leopard frog is a small, spotted frog with an adult body length of 1.75 to 3.5 inches. The dorsal color is brown, gray, or greenish with greenish-brown spots. A glandular dorso ...

Gentle and playful marine mammals, Florida manatees have come to represent the amazing biodiversity of Florida. With their large size, slow-moving nature, and fondness of seagrass, it's easy to see ...

DESCRIPTION: Pacific lamprey are slender, eel-like fish that are dark blue or brown in color and grow to about 30 inches long. They have lateral eyes, lack paired fins, and have no scales. Adult ...

Why are bats dying in North America? An estimated 6.7 million bats have died since 2006 because of an outbreak of white-nose syndrome, a fast-moving disease that has wiped out entire colonies and left ...

Plastic accumulating in our oceans and on our beaches has become a global crisis. Billions of pounds of plastic can be found in swirling convergences that make up about 40 percent of the world's ocean ...

The grizzly bear is so named because its hair is grizzled, or silver tipped, yet the name is commonly believed to be derived from “grisly,” meaning “horrible.” DESCRIPTION: A subspecies of brown bear, ...

DESCRIPTION: Steelhead can reach up to 35 pounds in weight, though average size on the central California coast is generally smaller. Steelhead are usually dark olive in color, shading to silvery ...

Several millennia ago, western Utah was covered by the ancient Lake Bonneville. Today its broad alluvial desert basins are scattered with springs still teeming with life. The colorful, pocket-sized ...

Even with its big, conspicuous ears and relatively long legs, the slender-built San Joaquin kit fox is the smallest member of the dog family in North America. Historically, this kit fox was widely ...

DESCRIPTION: The eastern diamondback is the largest rattlesnake in the world. Adults are typically four to five feet long and weigh four to five pounds. A big snake may reach six feet in length and ...

The smallest gray wolf subspecies in North America, the Mexican gray wolf is also one of the rarest and most imperiled mammals on the continent. The U.S. Fish and Wildlife Service (and its predecessor ...