The U.S. Treasury Department will stop producing new pennies in 2016. It is estimated that the pennies in circulation could ...

Birds come in a wide variety of colors. Some feature relatively dull plumage, while others sport brightly colored feathers.

Lands inhabited by Indigenous peoples in the tropics host much of the world's biodiversity. An estimated 60 million ...

The researchers analyzed rare fossils of hatchling birds found in northern Alaska, which offered the earliest evidence of the ...