Mice raised in isolation from their mothers developed cognitive deficits similar to those of babies raised in orphanages where physical contact is infrequent.
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The brain’s phagocytes follow an ATP bread trail laid down by calcium waves to the site of damage.
Fossils from northern Kenya point to a new human species that lived in Africa nearly 2 million years ago.
Japanese astronauts deliver an aquarium to the International Space Station to study the effects of microgravity on marine life.
Actin filaments respond to pressure by forming branches at their curviest spots, helping resist the push.
Germline stem cells discovered in human ovaries can be cultured into fresh eggs.
Ancient bacteria living in deep-sea sediments are alive—but with metabolisms so slow that it’s hard to tell.
Engravings of female genitalia in a cave in southern France may be the oldest cave art yet discovered.
Two 9,000-year-old skeletons will be held by University of California, San Diego, officials—rather than turned over to American Indians for reburial—until a lawsuit is settled.
Human-specific duplications of a gene involved in brain development may have contributed to our species’ unique intelligence.
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