Humans
- Archaeology
Agriculture’s roots go tropical
Tropical-forest dwellers in Central America may have cultivated manioc and other root crops as many as 7,000 years ago.
- Archaeology
Early farmers crop up in Jordan
An ancient site discovered in southern Jordan dating back more than 9,000 years may help to illuminate the origins of farming in the Middle East.
- Health & Medicine
Study bolsters head injury, Alzheimer’s link
Veterans who suffered a moderate or severe concussion during World War II face a heightened risk of Alzheimer's disease when they reach old age.
- Health & Medicine
When It’s No Longer Baby Fat
Increasingly, children are plump by the time they enter school, and they get fatter as they grow.
- Humans
From the April 14, 1934, issue
Yawning spells, disagreeable alcohols from anaerobic respiration, and how antibodies protect adults from disease.
- Health & Medicine
Categorizing Cancers: Gene activity predicts leukemia outcome
By dividing acute myeloid leukemia into subtypes on the basis of which genes are abnormally active in a given patient, doctors may be able to predict outcomes and make better treatment decisions.
- Health & Medicine
Slimmer Ticks, Less Disease: Tick-semen protein is potential vaccine
An antitick vaccine using a protein that causes female ticks to engorge on blood may control tick populations, a new study suggests.
- Humans
Letters from the April 17, 2004, issue of Science News
Sphere criticism In “Candy Science: M&Ms pack more tightly than spheres” (SN: 2/14/04, p. 102: Candy Science: M&Ms pack more tightly than spheres), I read that an orb of a given size, when slightly flattened, will pack more densely than when perfectly round. No kidding? Do you suppose if we were to crush cars into […]
- Health & Medicine
Drug for preemies linked to problems
A steroidal drug used to combat lung inflammation in premature infants appears to have long-term negative effects.
- Archaeology
Israeli cave yields Stone Age kills
A recently discovered Israeli cave has yielded some of the earliest known evidence of hunting by humans or our evolutionary ancestors, from around 300,000 to 200,000 years ago.
- Anthropology
Rock-solid choices of first toolmakers
Human ancestors who took up stone toolmaking in Africa around 2.6 million years ago already showed a proclivity for choosing high-quality pieces of rock, a new study finds.
- Health & Medicine
A drug to stop diabetes’ onset?
Individuals susceptible to developing type 1 diabetes may find hope in a vaccinelike drug that is showing promise in mouse studies.
