Tired Walking
Preventing falls among the elderly is a matter of mental energy.
Science Update
Earth Genome
Scientists set out to sequence the genome of every species on Earth.
Greener Biofuels
For biofuel makers, the new tax law makes lowering CO2 emissions profitable.
Hummingbird Tail Feathers
A male hummingbird makes sounds with his tail feathers to attract females.
Camping Improves Sleep
More time spent outdoors resets circadian rhythms to help us get a full night’s sleep.
Neanderthal Dental Plaque
Dental plaque from ancient Neanderthals reveals that they used herbal remedies.
Atomic Tweezers
Optical tweezers let scientists combine single atoms into molecules.
Language Genetics
Genes may influence the ability to tell certain consonants apart and may play a role in the …
The Brain on Time
The brain chemical dopamine may regulate our perception of how fast time passes.