Genetic mutation may have allowed early humans to migrate throughout Africa
A genetic mutation that occurred thousands of years ago might be the answer to how early humans were able to move from central Africa and across the continent in what has been called "the great expansion," according to new ...
Monkeys with larger friend networks have more gray matter
Fluctuating environment may have driven human evolution
A series of rapid environmental changes in East Africa roughly 2 million years ago may be responsible for driving human evolution, according to researchers at Penn State and Rutgers University.
Social wasps show how bigger brains provide complex cognition
Across many groups of animals, species with bigger brains often have better cognitive abilities. But it's been unclear whether overall brain size or the size of specific brain areas is the key.
Human brains outpace chimp brains in the womb
Humans' superior brain size in comparison to their chimpanzee cousins traces all the way back to the womb. That's according to a study reported in the September 25 issue of Current Biology that is the fi ...
Grandmas made humans live longer
Computer simulations provide new mathematical support for the "grandmother hypothesis" – a famous theory that humans evolved longer adult lifespans than apes because grandmothers helped feed their grandchildren.
Were 'hobbit' hominids island dwarfs?
Japanese scientists on Tuesday waded into a row over so-called "hobbit" hominids whose remains, found on a remote Indonesian island a decade ago, have unleashed one of the fiercest disputes in anthropology.
Ceria nanoparticles could lessen the damage from ischemic strokes
(Phys.org)—The most common form of strokes are caused by a sudden reduction in blood flow to the brain (ischemia) that leads to an inadequate supply of oxygen and nutrients. These so-called ischemic strokes ...
Organisation trumps size in primate brain evolution
(Phys.org) —The evolution of anthropoid primates, including monkeys, apes and humans, over the past 40 million years was largely driven by brain reorganization, and not brain size, according to new research ...
Bigger not necessarily better, when it comes to brains
(PhysOrg.com) -- Tiny insects could be as intelligent as much bigger animals, despite only having a brain the size of a pinhead, say scientists at Queen Mary, University of London.
Research suggests bigger human brains may also explain higher incidence of cancer
New study finds evolution mostly driven by brawn, not brains
The most common measure of intelligence in animals, brain size relative to body size, may not be as dependent on evolutionary selection on the brain as previously thought, according to a new analysis by scientists.
Big brains are pricey, guppy study shows
Bigger brains can make animals, well, brainier, but that boost in brain size and ability comes at a price. That's according to new evidence reported on January 3rd in Current Biology, in which researchers artifi ...
New measurement of crocodilian nerves could help scientists understand ancient animals
Crocodilians have nerves on their faces that are so sensitive, they can detect a change in a pond when a single drop hits the water surface several feet away. Alligators and crocodiles use these "invisible ...