PHOENIX — Pills loaded with bacteria from other people’s poop might help adults who are highly allergic to peanuts safely eat the nuts in small amounts. In a small clinical…
Category: Humans
50 years ago, freezing sperm faced scientific skepticism
The uncertainty of banking sperm – Science News, February 26, 1972 Many men contemplating vasectomies have been depositing a quantity of their semen with sperm banks where, for a fee,…
Africa’s oldest human DNA helps unveil an ancient population shift
Ancient Africans in search of mates traded long-distance travels for regional connections starting about 20,000 years ago, an analysis of ancient and modern DNA suggests. That shift occurred after treks…
Homo sapiens bones in East Africa are at least 36,000 years older than once thought
Fossils from the oldest known Homo sapiens individual in East Africa are more ancient than previously thought. A partial H. sapiens skull and associated skeletal parts found in 1967 in…
‘Origin’ explores the controversial science of the first Americans
OriginJennifer RaffTwelve, $30 Scientific understanding of the peopling of the Americas is as unsettled as the Western Hemisphere once was. Skeletal remains, cultural artifacts such as stone tools and, increasingly,…
Homo sapiens may have reached Europe 10,000 years earlier than previously thought
Stone Age Homo sapiens began migrating into Europe much longer ago than has typically been assumed. Discoveries at a rock-shelter in southern France put H. sapiens in Europe as early…
Clovis hunters’ reputation as mammoth killers takes a hit
An amateur archaeologist exploring a dried-out, ancient stream channel called Blackwater Draw near Clovis, New Mexico, made a startling discovery in 1929. He came across chiseled stone points strewn among…
Psychology has struggled for a century to make sense of the mind
One of the most infamous psychology experiments ever conducted involved a carefully planned form of child abuse. The study rested on a simple scheme that would never get approved or…
Moral judgments about an activity’s COVID-19 risk can lead people astray
What do you think was riskier during the pre-vaccine days of the pandemic: having your lonely parents over for dinner or going to a beach filled with dozens of strangers?…
Playing brain training games regularly doesn’t boost brainpower
It’s an attractive idea: By playing online problem-solving, matching and other games for a few minutes a day, people can improve such mental abilities as reasoning, verbal skills and memory.…
