Candiru crave blood, but the strange fish may use their hosts in more ways than previously known.
Like a peacock with its dazzling plumage, this Cretaceous bird had fancy tail feathers that likely served to attract…
These tigers often appear more black than orange, and now scientists know why.
Dental cavities were surprisingly common among early primates living 54 million years ago.
For its time, Titanokorys gainesi was an absolute unit.
Foul-mouthed "Ripper" was a male musk duck who lived in Australia.
The new footage is the first to capture an angel shark swimming off the coast of Wales.
The roundworms can warn others to avoid bacteria by transferring genetic material.
Museum samples, sketches, and written accounts allowed for an accurate representation of the marsupial’s true colors.
Dogs behaved differently when people intentionally kept food from them versus when they were "accidentally" unable…
Scientists aren’t entirely sure how tiny tardigrades evolved insect-like walking skills.
Meet T. alcoberi, a critter that lived over 200 million years ago.
Smugglers had cut the fossil into six pieces, but paleontologists have been able to reconstruct it.
Rhinos are barely hanging onto survival today, but over 100 species of these horned beasts roamed Earth in the past.
A biologist described the attack as "very, very strange, and totally different from normal tortoise behavior.”
Paleontologists examined the braincases of two daspletosaurs and were surprised to find significant differences…
Scientists say that sea snakes' seemingly aggressive behavior toward humans may actually be misguided courtship.
The animals are condylarths, extinct predecessors to modern-day ungulates like horses and rhinos.