Ice caves are without a doubt some of the strangest natural wonders on Earth.
Dark matter 'hairs' may grow out of Earth
November 30, 2015, 10:57 a.m. by Mike Wall, SPACE.com
The 'roots' could extend as deep as 600,000 miles from the planet's surface.
'Racing Extinction' sounds the alarm on Earth's disappearing species
November 30, 2015, 8:55 a.m. by Gerri Miller
Filmmakers behind 'The Cove' turn spotlight on habitat loss and the role of humans.
10 national animals that are rare, unusual, endangered or completely nonexistent
November 30, 2015, 7:32 a.m. by Matt Hickman
Why shouldn't a unicorn hold such a lofty national position?
An intimate look at Yellowstone's most famous grizzly mama
November 30, 2015, 6:32 a.m. by Jaymi Heimbuch
Explore the life of bear 399 and her cubs through the images of Tom Mangelsen.
King Tut's tomb likely has hidden, undiscovered rooms
November 29, 2015, 1:14 a.m. by Bryan Nelson
Researchers say there's a 90% chance of more undiscovered chambers amid new evidence.