Brain size matters when it comes to animal self-control
(Phys.org) —Chimpanzees may throw tantrums like toddlers, but their total brain size suggests they have more self-control than, say, a gerbil or fox squirrel, according to a new study of 36 species of mammals ...
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 ...
Bird brains predate birds themselves: 'Flight-ready' brain was present in some non-avian dinosaurs
New research provides evidence that dinosaurs evolved the brainpower necessary for flight well before they actually took to the air as birds. Based on high-resolution X-ray computed tomographic (CT) scans, ...
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.
Anthropologists confirm link between cranial anatomy and two-legged walking
Anthropology researchers from The University of Texas at Austin have confirmed a direct link between upright two-legged (bipedal) walking and the position of the foramen magnum, a hole in the base of the ...
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.
Study finds Weddell seals have most developed brains at birth of any mammal
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 ...
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.
Fish study links brain size to parental duties
Male stickleback fish that protect their young have bigger brains than counterparts that don't care for offspring, finds a new University of British Columbia study.
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 ...