Photos: Anori, half-sister of the late polar bear Knut, makes her debut
April 3, 2012, 10:37 a.m. by Catie Leary
There's a new cub on the block!
Cutting the lights off around the world for Earth Hour
April 2, 2012, 11:48 a.m. by Catie Leary
Cities across the globe turned off their lights for Earth Hour this weekend, an annual reminder of our role in the battle against climate change.
Photo: Gasoline worries spark panic buying across the pond
March 30, 2012, 11:44 a.m. by Catie Leary
The possibility of a strike by fuel tanker drivers prompted U.K. government officials to warn consumers of a possible gas shortage — but the resulting buying frenzy created more political finger pointing.
Photo: Cyclists descend on Australia for last chance at Olympics
March 29, 2012, 11:38 a.m. by Catie Leary
British Olympian Victoria Pendleton tries for another gold medal at the annual World Championships for track cycling, which runs from April 4-8 in Melbourne, Australia.
Photos: Kids join first lady at annual spring planting at the White House
March 27, 2012, 11:53 a.m. by Catie Leary
Children from various states were invited to the event after writing to Michelle Obama to share their personal experiences with gardening in their communities.
Photo: Baby rhino sparks hope for species' survival
March 21, 2012, 11:48 a.m. by Catie Leary
Charlees, a 2-month-old Indian rhino, makes her grand public debut at the San Diego Zoo Safari Park.
Photo: Tulips and tourists greet the vernal equinox in D.C.
March 20, 2012, 11:42 a.m. by Catie Leary
Unseasonably warm weather has caused Washington's spring flowers and famous cherry blossoms to bloom days before the official end of winter.
Holi: Celebrating spring's arrival with a splash of color
March 19, 2012, 11:32 a.m. by Catie Leary
Revelers covered in powdered dye celebrate Holi, also known as the Festival of Colors, on a cruise ship in Manhattan, N.Y.
New variety of 'golden rice' will soon be grown in Bangladesh
Is a vegetarian diet safe for my dog?
Hermit crabs are dying by the millions after swapping their shells for plastic
The legend of Utah bobcat Mr. Murderbritches
How important is breakfast to weight loss?
The world's 10 oldest living trees