From diet to evolution, prehistoric chompers tell archaeologists a surprising amount about our ancestors
But if free-swinging sperm sacs are the norm, then why did undescended ones evolve four separate times?
No one quite has this sex thing figured out, but these non-binary animals have some good ideas
In anticipation of a potential new cub, here’s a refresher on Mei Xiang and Tian Tian’s storied past
The skeletons of deer killed 120,000 years ago offer more evidence of cooperative behavior and risk-taking among our hominin relatives
Brazilian surfer Rodrigo Koxa had to conquer PTSD before he was ready to break Garrett McNamara’s world record
Once in orbit, astronaut William Anders takes one of the most legendary photographs of all time
The laws of nature constrict living light to a few hues, which also happen to be quite patriotic
Famed fisherman and adventurer Andy Coetzee thinks he may have snared a giant barracuda. He hasn't, but he's caught another interesting and prized fish
Tiger cub Kumal is entirely dependent on his mother to hunt prey. He also relies on his father for protection against intruders
...and so unbearable for you
A new breed of law enforcement is on the scene—and its bite is stronger than its bark
The tongues of bird-like dinosaurs and pterosaurs, however, may have been more mobile
Exploring the similarities and differences between Indigenous and Western cosmologies
After a decade on view, these cephalopod specimens have a growing fan base
The true story behind our obsession with the last and largest of the tyrannosaurs
Breeders are trying to save a 'pure' Cuban crocodile—but out in the wild, divisions between species are increasingly murky
Rising sea levels are threatening to flood Miami. In fact, some scientists estimate that the entire city could be underwater by the end of the 21st century
A new model of the solar system suggest we have gas giants to thank for our watery world
Hippos were once believed to be related to whales. They're both mammals, they both sleep underwater, and they both rise to breathe in their sleep
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