A farmer in Russia's Stavropol region found the waterlogged "king." Specimens of rat kings are preserved in the collections of some natural history museums.
Over 100,000 years ago, extinct relatives of modern elephants lived in matriarchal groups, according to preserved trackways in southwestern Spain.
A newly described extinct giant penguin from New Zealand has unusually long legs and a long, slender beak, and it dates to a time when much of the region was underwater.
For millennia, the function and importance of this singular organ has fascinated physicians, philosophers and artists around the world.
Our quest to understand how the heart works — in ourselves and in other animals — has inspired philosophers and artists as well as doctors and researchers.
These ghastly meals provide male butterflies with chemicals that they use to produce mating pheromones, which female butterflies find irresistible.
A newly described species of mosasaur, an extinct marine reptile, swam through Cretaceous seas 80 million years ago and had a slender snout like a crocodile's.
Thylacines, once widespread in Australia, have been extinct for nearly a century, but newly colorized footage provides a glimpse of what they looked like in life.
An ocean creature that lived around 500 million years ago was the largest predator on the sea bottom.
The largest triceratops in the world, scheduled to be auctioned on Oct. 21, will be on display to the public in Paris beginning Sept. 16.
A new analysis of shoes that may have belonged to the Renaissance artist Michelangelo revealed his small stature.
Meet "Attenborough's Beauty," an ancient beetle that was so exceptionally well-preserved you can still see the colorful patterns on its wing case.
An adult mammoth's preserved tusk revealed how far the animal ranged across Alaska during its 28-year lifetime.
A pterosaur "dragon" that lived in Australia during the Cretaceous was the continent's biggest flying reptile, according to a new analysis of a fossil jawbone.
Hundreds of scientists with a UN panel reviewed more than 14,000 studies documenting climate change evidence, to create a new report for policymakers worldwide.
Storm formation during the 2021 Atlantic hurricane season will be higher than previously predicted, according to an update by NOAA scientists.
After 60 years, a missing piece of Stonehenge finally returns to the U.K., revealing secrets about the age and structure of the rock in the monument's iconic pillars.
Do polar bears throw rocks at walruses' heads to stun and kill them, as centuries of anecdotes suggest? They might, scientists say.
Billions of years ago, a slowdown in Earth's rotation period lengthened days and offered photosynthesizing bacteria the chance to release more oxygen, transforming the planet.
Scientists discovered cracked tail vertebrae and a large, bony foot tumor in the fossil skeleton of a dinosaur that lived during the Cretaceous.