A young female macaque fought her own mother to seize control of her troop for the first time in 70 years. Now her reign is in jeopardy.
A pod of orcas frees an entangled humpback whale off Western Australia. But were they really trying to rescue it?
A spellbinding new video captures a Gentoo penguin's point of view as it feasts on a giant ball of sardines alongside diving albatross and cormorants.
Scientists discovered a new type of parasitic worm that only infects the mouths of tarantula spiders.
Scientists spotted the world's deepest-dwelling squid 20,000 feet below the Philippine Sea while hunting for a lost WWII battleship.
Of all the living animals in the world, these are the ones with the longest arms, relative to body size.
A mesmerizing new video of an elusive blanket octopus swimming above the Great Barrier Reef in Queensland, Australia shows a "once-in-a-lifetime encounter."
Mesopotamians were using hybrids of domesticated donkeys and wild asses to pull their war wagons 4,500 years ago, scientists have found.
A new study into genetic mutations in thale cress has found that genetic mutations are not totally random.
A group of tiny, colorful birds has been singing the exact same tunes for more than 500,000 years — and maybe as long as 1 million years, according to a new study.
Scientists onboard an icebreaker in Antarctica were blown away when they spied a trove of 60 million icefish nests dotting the floor of the Weddell Sea.
The remains of a monstrous "sea dragon" that swam in the seas some 180 million years ago have been unearthed in England.
A site in Australia that holds thousands of astonishingly well-preserved fossils has been kept a closely guarded secret among paleontologists for the past three years.
Greenland sharks may have a lifespan of hundreds of years in the Arctic and North Atlantic oceans, where much about their lives remains a mystery.
A supremely weird new video shows a goldfish driving a water-filled, motorized "car" to help scientists understand how they navigate on land.
A new study has revealed that dogs' brains react differently to familiar and unfamiliar human languages.
The discovery of four shark fossils with bite marks shows that ancient sharks attacked or scavenged each other.