Wed, Mar 26, 2014 at 8:00 AM
Sandy creatures come alive in these frozen, weightless moments captured by photographer Claire Droppert.
Tue, Mar 25, 2014 at 9:00 AM
Freshly blossomed almond trees are illuminated by the fiery sunset in Czech Republic.
Mon, Mar 24, 2014 at 8:00 AM
The cuddly duo — a boy and a girl born at the Hellabrunn Zoo in December — explore their enclosure with their mom, Giovanna.
Fri, Mar 21, 2014 at 8:30 AM
Explore the wonderful (and strange) world of polychaetes with these stunning photos captured by marine zoologist and photographer Alex Semenov.
Thu, Mar 20, 2014 at 9:00 AM
Even as man-made climate change and pollution threatens the Earth's oceans, these jarring oceanic portraits offer a sobering reminder of the sheer strength and wrath of Mother Nature.
Wed, Mar 19, 2014 at 9:00 AM
Taronga Zoo is celebrating the first successful birth of this adorable tree-dwelling macropod species at its facilities in more than 20 years.
Tue, Mar 18, 2014 at 10:06 AM
After a fiercely bitter, sub-zero winter that broke records across North America, the first signs of spring are finally peeking out of the ground.
Wed, Apr 09, 2014 at 1:38 PM
Take a visual tour of the world's most ethical countries to travel to, from the Caribbean to the pacific island of Palau.
Fri, Mar 14, 2014 at 3:52 PM
The national wildlife refuge system is one of America's most valuable natural assets. You can get a taste of their glory with these stunning photos from refuges around the country.
Fri, Mar 14, 2014 at 9:00 AM
St. Patrick's Day is upon us, and for many Americans, that means raucous parades, flowing kegs of beer, an overdose of green attire and, of course, countless references to the ubiquitous pot of gold found at the end of the rainbow.