2,657 results
- Health & Medicine
Microbicide thwarts AIDS virus in monkey test
A microbicidal gel applied vaginally prevents some transmission of the AIDS virus in monkeys.
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Two aspects of sleep share a master
A molecular connection between the timing of sleep—a part of circadian rhythms—and how long animals slumber each day is demonstrated for the first time.
- Humans
Science News of the Year 2004
A review of important scientific achievements reported in Science News during the year 2004.
- Anthropology
Brain Size Surprise: All primates may share expanded frontal cortex
A new analysis of brains from a variety of mammal species indicates that frontal-cortex expansion has occurred in all primates, not just in people, as scientists have traditionally assumed.
- Paleontology
Ancestral Handful: Tiny skull puts Asia at root of primate tree
Researchers have unearthed the partial skull of the oldest known primate, a tiny creature that lived in south-central China 55 million years ago.
- Anthropology
Out on a Limb
The science of body development may make kindling out of evolutionary trees.
- Humans
From the April 7, 1934, issue
Pouring the 200-inch glass disk for a new telescope, a new man-ape link, and planetary weather cycles.
- Anthropology
Evolution’s Lost Bite: Gene change tied to ancestral brain gains
In a controversial new report, a research team proposes that an inactivating gene mutation unique to people emerged around 2.4 million years ago and, by decreasing the size of jaw muscles, set the stage for brain expansion in our direct ancestors.
- Math
Generous Players
Game theory is helping to explain how cooperation and other self-sacrificing behaviors fit into natural selection.
- Humans
From the July 15, 1933, issue
LIVELY YOUNG MARMOSETS SURVIVE IN CAPTIVITY Two lively, chattering young marmosets are growing up in San Francisco without the slightest notion of what “rare specimens” they are. They have a very great distinction of surviving birth in captivity. Naturalists say that this type of New World monkey is often born in captivity but usually the […]
- Anthropology
Anklebone kicks up primate debate
The discoverers of a roughly 40-million-year-old anklebone in Myanmar say that it supports the controversial theory that anthropoids, a primate group that includes monkeys, apes, and humans, originated in Asia.
- Health & Medicine
Scientists retract ecstasy drug finding
Scientists have recanted a controversial report on the dangers of the drug commonly called ecstasy.
