Pterosaur neck vertebrae had an incredible internal structure.
Cheetahs are unique members of the big cat family, with bodies built for acceleration and short bursts of incredible speed.
Four dead gray whales have washed up in San Francisco Bay in eight days, prompting fears that the species is under threat in the area.
No animal is less related to you than a sea sponge, and they've got the genes and nerveless, anus-less bodies to prove it.
Archaeologists in Saudi Arabia have uncovered bones at a burial site that reveal the domestication of dogs in the area happened much earlier than previously believed.
During the Jurassic period, long-necked dinosaurs gulped down pink stones and then migrated hundreds of miles across what is now the American Midwest.
A months-long rescue operation transported the last of nine stranded giraffes to their new home in a mainland sanctuary.
Adding speed bumps to a road in a national park in Zanzibar has reduced the number of collisions between cars and one of Africa's rarest primates.
Scientists in China have discovered a new species of deadly snake and have named it after a shape-shifting snake goddess from Chinese mythology.
Chimpanzees are one of our closest living relatives and share many of the same traits as humans. They are highly intelligent and social creatures, but they are also capable of extreme violence.
Wally has been stirring up mischief by lounging on lifeboat slipways and capsizing passing dinghies, but conservation groups have warned tourists not to get too close.
Baby sea stars may look innocent and adorable, but they're teensy little cannibals and eat their own siblings for their own survival.
At least 90 mysterious blobs of underwater jelly have been sighted near Norway and the Mediterranean Sea, and researchers finally know what they are.