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It’s less than an inch in diameter.
BIOLOGY
From back injuries to difficult childbirth, here are six annoying parts of being human that you can blame on evolution.
“Fart walks” could be the answer to your gastrointestinal woes.
Researchers just described one of the tiniest frogs known to science.
Researchers recently found that polar bears are facing higher exposure to certain bacteria and viruses.
Scientists are closer to understanding how Greenland sharks can survive for hundreds of years.
Dr. Donald “Reef” Nelson dedicated his life to studying sharks and was part of the inspiration for Matt Hooper, Richard Dreyfuss’s character from 1975's “Jaws.”
The average body temperature isn't actually 98.6°F, a fact scientists have known for at least three decades. So why does this myth persist?
The alien-looking, bloodsucking fish have cells that may form the same rudimentary nervous system we have.
At some point, whether during the day or at night, all birds need to sleep. How do they do it?
A single number for birds’ lifespans is difficult to pin down, but the ability to fly is one of the keys to their longevity.
Foxes are highly skilled hunters, which allows them to eat a variety of small animals.
Though she died of cancer in 1951, Henrietta Lacks's immortal cells became the foundation for countless medical advancements.
It has even led to the discovery of a new species.
Opossums have a bad reputation, but they’re smarter and more beneficial to people than other woodland denizens. Discover more about these unique marsupials here.