Could a brutal fight between a spear-fisherman and a tiger shark have been prevented?
A group of spear-fishermen survive a two-hour battle with a 12-foot shark in the Gulf of Mexico.
An ancient shark fossil suggests great whites belong to a rather mild-mannered family.
Hundreds of species live in both poles despite the 8,000-mile distance. But how?
Lead levels in the hair of Australian animals reveal they are at higher risk than humans.
Tiger stripe patterns are used like fingerprints to trace poached skins.
An estimated 7,000-10,000 moon bears are trapped in bile farms across China.
People are spending less time at the beach, which may explain a dip in shark attacks.
The walrus can sleep anywhere (even in water) and can easily forgo sleep for up to 84 hours.
A chimp at Swedish zoo plans stone-throwing attacks on visitors, research concludes.
Finally, the endless energy of hamsters running on their wheels is put to a useful purpose.
Coral reefs are healthiest in regions of low and high economic development, research finds.
Newly released footage shows elusive Javan rhinos wallowing in the mud in Indonesia.
The finding of a tropical turtle in the Arctic suggests the region was once much balmier.
Three out of four bird species in Europe are facing decline under warming, research shows.
Some whales do double-duty when it comes to "seeing" their surroundings.
A new class of chemicals takes part of the blame for feminized male fish.
Chimps in central Africa use carefully crafted "paint brush" probes to haul up termites.