Date pushed back to 3 billion years ago

Math-related visualization skill emerges rapidly in preschool years

Massaging the sugary gel into babies' mouths may lessen need for intravenous infusions

Immune system seems to remember cancer in people who've never had it

Babies react to a snake’s hiss, fire’s crackle and other ancient danger sounds

People unlearned an odor's unpleasant accompaniment when they smelled it in their sleep

Simulations suggest reduced air pollution would improve public health

‘Foreign’ lionfish — aquarium castoffs — have been invading American coastal waters at an alarming rate and gobbling up the natives

A moon-orbiting satellite detected traces of water in surface rocks

Retina blood lines regrow when treated with angiopoietin-1

Records suggest babies born at home are more prone to unresponsiveness after five minutes

More than one person caught new illness from bats, camels or other creatures

Built-in poop nourishes bacteria that protect notorious Formosan species

Clearing out uncharged molecules may prevent charge buildup

Lack of gas in atmosphere argues against presence of life on Red Planet

Genomes of big felines provide insight into their evolution

Researchers tackle a wealth of problems by creating novel surfaces that repel liquids

Egyptians used metal from meteorites to make jewelry more than 5,000 years ago

Cells in the lab weave themselves into tiny, brainlike structures

Parasite's ill effects on rodents persist long after disease clears