Orchids 101: The biology behind these elegant flowers
July 13, 2016, 11:31 a.m. by Anna Norris
With more than 20,000 species and more than 800 genera, orchids are an incredibly diverse family of plants.
Puma returns to rain forest after 20 years in chains
November 24, 2015, 7 a.m. by Russell McLendon
A new video captures the elderly cat's first moments of freedom in an Amazon forest reserve.
Jewels of the forest: The fascinating world of tree frogs
August 12, 2015, 9 a.m. by Anna Norris
These arboreal amphibians are enchanting — and all-around adorable.
7 new species of frogs that could fit on your thumbnail
June 5, 2015, 3:49 p.m. by Ali Berman
Climate change threatens the perfect conditions that these cute frogs need to survive.
This might be the best video of lava you've ever seen
March 25, 2015, 5:50 p.m. by Russell McLendon
Kilauea has been erupting for 32 years, but a new video captures the volcano's oozing beauty as few people ever get to see it.
Interactive map plots your address over 750 million years of Earth's history
Golf courses across U.S. step up to save monarch butterflies
9 of the world's largest dog breeds
'Signing Day' recognizes high school seniors starting jobs, not college
Students in Finland offer a succinct lesson in commuting
How to use succulents as outdoor annuals