Jonathan the tortoise has become the oldest tortoise ever by reaching 190 years old. He was already the oldest living land animal.
Scientists in Antarctica have unexpectedly spotted a sub-Antarctic penguin breeding on the southernmost continent.
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.