Environment

Zenda, courtesy Philadelphia Zoo The Philadelphia Zoo has euthanized a 25-year-old lioness believed to have been the oldest lion in the United States after the animal suffered an acute decline …

Giant panda twin cubs Fu Feng and Fu Ban, which were born on August 7, are seen in their enclosure at Schoenbrunn Zoo in Vienna, Austria, in this handout photo …

AA Photo A new subspecies of lizard has been discovered in the eastern province of Tunceli, Turkey. The subspecies, published in the Russian Journal of Herpetology, was named Neurergus Strauchii …

A snowstorm that pummeled the Midwest and left at least two dead will sweep across the U.S. Northeast on Monday, creating tough travel conditions ahead of the season’s first arctic …

A man dressed as Santa Claus feeds reindeers at a reindeer farm in preparation for Christmas on the Arctic Circle in Rovaniemi, northern Finland Reindeer are shrinking on an Arctic …