Erika Howsare's 'The Age of Deer' tracks the roller-coaster ride of deer populations in the U.S. — and what they reveal about human ways of thinking.

This interactive map highlights lesser-known species across America that are protected under the Endangered Species Act in 2019. In the U.S., 719 animal species are listed as federally endangered ...

Sen. Lindsey Graham (R-S.C.) jokingly asked the conclave to “keep an open mind” about making President Trump the next pope. “I was excited to hear that President Trump is open to the idea of ...

Wharton School Professor Jeremy Siegel has changed his mind about the necessity of an emergency interest rate cut by the Federal Reserve, after rattling the financial world with his calls for one ...

The two-inch snail darter became a symbol for regulatory overreach in the 1970s. New research suggests the fish was not an endangered species — or even a species.

Keeping that in mind, the folks at Signature African Safaris put together a map uisng data from the World Wildlife Fund (WWF) to show where in the world the most endangered animal species are located.

The green-and-black poison frog, photographed here at the Sunset Zoo in Kansas, is the first known amphibian to create and revise mental maps of its surroundings.

Kiski Area South Primary School students hold their winning animal-themed gift baskets. The school raised more than $600 for endangered animals at the Pittsburgh Zoo and PPG Aquarium.

Researchers are studying what's left of Iowa's original prairies — which used to cover 65 percent of the state — to help guide reconstruction efforts.

Erika Howsare's 'The Age of Deer' tracks the roller-coaster ride of deer populations in the U.S. — and what they reveal about human ways of thinking.