Four in 10 in U.S. live with dangerous air pollution
April 29, 2015, 11:44 a.m. by Mary Jo DiLonardo
American Lung Association's annual report looks at soot and smog — and many cities don't fare well.
Newly discovered glass frog looks a lot like Kermit
April 21, 2015, 10:32 a.m. by Mary Jo DiLonardo
Muppet-like creature with a see-through belly found hanging out in the jungles of Costa Rica.
These birds prove you don't need a big brain for a complex social life
Dogs really are 'the best people,' and we have the photos to prove it
Why do birds migrate at night?
Monarch butterflies make a pit stop in Colorado
Przewalski's horses: 10 things you didn't know about the last 'wild' horses on Earth
This may be why the 'devil worm' can live where no other animal can