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Ancient People Followed 'Kelp Highway' to America, Researcher SaysThe rich ecosystem may have provided a logical path for humans to migrate from Asia thousands of years ago.
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Ancient Cave Art Full of Teenage GraffitiTeenage males used cave walls to brag about hunting success and sexual exploits.
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The Rules of Attraction in the Game of LoveThe smell of your armpits, the symmetry of your face, and your waist-to-hip ratio all factor in to a prospective Valentine's decision. But what makes lasting love?
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Of Mice and Bullies: Scientists Help Rodents CopeResearchers let mice get hassled, then delete a gene in their brains to help relieve the stress. Would it work in humans?
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The Science of Hit SongsPeople pick favorites largely on what others have deemed popular, a new study finds.
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Oldest Known Tyrannosaur FoundThis new species lived around 160 million years ago and sported a strange head crest.
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Potentially Harmful 'Undead Cells' Collect with AgeStudy indicates that as you age, the number of useless cells grows exponentially.
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Killer Whales Set Traps for Gullible GullsKiller whales set traps for their prey and share their hunting tricks with friends.
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Male Monkeys Fatten Up During Pregnancy, TooSome male monkeys put on extra pounds to store energy to take better care of newborns.
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'Queen of Mean' Turns Nice When Daughter DiesSylvia, a 23-year-old baboon, alters behavior to seek comfort in mourning.
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Is Your Earwax Wet or Dry?Scientists don't know if it really matters, but now they've traced the differences back to their origin.
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One Theory Down, Dino's Bizarre Appendage Still PuzzlesWas it a brain cooler or a snorkel? Not likely. And it wasn't a giant nose.
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Ethanol Fuel More Advantageous Than ThoughtStudy refines thinking on this alcohol-based substitue for gasoline.
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The Primate Police: Monkey Cops Keep Groups in LineElected to protect and to serve, these elders break up fights and encourage group interactions.
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Snails That Fly Around the WorldAn evolutionary trail leads from Europe to the Azores, to a South Atlantic Island and back again.
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That's Why the Lady Pseudoscorpion is a TrampHaving multiple mates at one time leads to increased reproductive success in some animals.
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Minuscule Motor Runs on SunlightSunlight powers this little engine, which produces zero waste.
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Amazon Tribes Know GeometryNew study suggests everybody has inherent understanding of triangles and other basic geometry concepts.
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Human Ears Evolved from Ancient Fish GillsMissing link reveals evolution of fish gills to modern ear.
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Men Enjoy Physical Revenge, Brain Study SuggestsMen and women feel empathy for likeable people, but men seem to get satisfaction from seeing the loathsome suffer.
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Less Pollution on City Sidewalks than StreetsWhether you walk, bike or ride affects how much bad air you breathe.
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The Journey of a New Brain CellNew study reveals how cells migrate to where they're needed.
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More Frogs Dying as Planet WarmsGlobal warming may set off a chain reaction that's killing frogs, scientists say.
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Ant School: The First Formal Classroom Found in NatureStudy shows first non-human evidence of formal teaching.
