The perfect photograph takes more than talent: see the research, pain and frustration behind the scenes.
Unmask heroin, the drug that can be life-threatening.
Ketamine is cheap, easy to get hold of and incredibly powerful.
At up to 40 feet long and 20 tons, the largest fish in the sea lives entirely on the very tiniest of creatures.
The little red flying fox of Australia sometimes form camps of over one million individuals.
Male southern elephant seals, or bulls, must compete to earn the right to mate with an assembly of females.
Award-winning photojournalist Tim Hetherington captures beauty, fear and pain in Korengal Valley, Afghanistan.
Researchers fear a newest tourist craze may be upsetting sharks’ natural behavior.
The EcoARK pavilion is built largely of recycled plastic bottles and is hailed as a benchmark for the future of green buildings.
See dramatic tiger portraits and landscapes from South Africa's Tiger Canyons.
John Varty is the Tiger Man. A South African conservationist and filmmaker, he specializes in big cats.
Follow the stories of those families who lost their loved ones on 9/11.
Mind bending tests that are having these people scratching their heads.
A look at the people and the challenges they put their brain power to work on.
In an epic and ambitious quest for answers, a team of British, Canadian and American volcanologists are teaming up to carry out...
How do millions of simple creatures form a collective brain, make decisions and move like a single being? Enter the secret worl...