Oldest fossils ever found reveal glimpse of Earth's earliest organisms
August 31, 2016, 6:25 p.m. by Bryan Nelson
A rock formation recently exposed in Greenland contains fossils that are 3.7 billion years old.
9 of North America's most fascinating kettle lakes
May 16, 2016, 4:02 p.m. by Sidney Stevens
These glacial gifts offer a glimpse into our prehistoric and cultural past.
Finding peace with a pack, a trail and lots of time
October 12, 2015, 11:58 a.m. by John Donovan
Thru-hiking is a way of life for substitute teacher and former marathoner Erin Saver.
New lakes discovered under Greenland's ice sheet
January 22, 2015, 10:47 a.m. by Becky Oskin, LiveScience
Monitoring these lakes will help scientists forecast how the ice sheet will respond to global warming.
Watch as a blind elephant meets her new herd
Norway's melting ice is revealing priceless ancient artifacts
Suffer from tinnitus? This might bring you relief
Your winter garden may be quiet, but your winter soil is brimming with life
You only think you know the black panther
9 of the world's largest dog breeds