While you might think that steak with yellow-tinged fat could be a sign of spoilage, there's more to the reason than meets the eye. Here are the facts.

The evening grosbeak, a large black-and-yellow finch found across the United States, has experienced steep population ...

The 8-inch, bright pink slug has been isolated in a "sky island" for millions of years.

Researchers from Pennsylvania will be banding and tagging Evening Grosbeaks in northern Michigan from February through April, ...

A scientist has discovered a hopping treasure trove -- 16 new species of grasshoppers living in the thorny scrubs of U.S. and Mexican deserts.

Lawmakers considered the goldfinch. Kids liked the scarlet tanager best. The whole thing took more than three decades.

For the first time, scientists have completed an in-depth analysis of fossilized soft tissues from a plesiosaur ...

As night fell across western Thailand, a “long”-limbed creature emerged from the rocks and took up its perch. Its “large” eyes scanned the landscape, but it wasn’t the only one looking around. Nearby ...

A large, clear yellowish, glob caught in Thunder Bay along Lake Huron was a bryozoan colony, native to the habitat.

It’s a sunny February afternoon in 1982 at camp. The hot water hisses in the tea kettle on the woodstove. Outside it is 15 ...