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Sleep-Deprived Brains
A brain chemical called adenosine plays a major role in symptoms of sleep deprivation.
Silky Tarantula Feet
Tarantulas produce life-saving silk from their feet.
Healthy Handshakes
A new study investigates whether shaking hands spreads germs.
SETI Star Survey
Astronomers are listening for radio signals from star systems that are most likely to harbor life.
Toxic Animal Roundup
Cats are transmitting a dangerous brain disease to wildlife.
Movie Star Marriages
Even movie stars tend to choose spouses with similar education levels.
Brainless Navigation
Although they lack real brains, box jellyfish can follow landmarks above the water's surface.
Gender-Biased Children’s Books
Children’s books are dominated by male characters.
Starless Starfish
A starfish without arms makes scientists rethink how they classify animals.
Sleep Roundup
New research sheds light on what’s going on in the brains of sleeping teenagers.
Erasing Memories
Scientists have extinguished, or at least greatly weakened, a long-term memory in a sea snail.