Archaeology
- Animals
When and why did masturbation evolve in primates? A new study provides clues
In a first-of-its-kind comparative study, researchers show that primates were masturbating 40 million years ago and that the behavior may help males keep their sperm fresh.
- Anthropology
Homo naledi may have dug cave graves and carved marks into cave walls
Proposed discoveries of humanlike activities by these ancient, small-brained hominids have elicited skepticism from some researchers.
- Humans
Oldest traces of a dysentery-causing parasite were found in ancient toilets
Scientists have found traces of giardia in two toilets used by wealthy residents of Jerusalem in the 7th and 6th century B.C.
- Archaeology
The oldest scaled-down drawings of actual structures go back 9,000 years
Rock engravings in Jordan and Saudi Arabia may be maps or blueprints of desert kites, massive structures once used to capture animal herds.
- Archaeology
Ancient human DNA was extracted from a 20,000-year-old deer tooth pendant
Insights into Stone Age people’s lives may soon come from a new, nondestructive DNA extraction method.
- Archaeology
A prehistoric method for tailoring clothes may be written in bone
A punctured bone fragment was probably a leatherwork punch board. Perforated leather sewn together may have been seams in clothing.
- Archaeology
Hair analysis reveals Europe’s oldest physical evidence of drug use
Analyses of human hair found in a Mediterranean cave turned up psychoactive plant substances, revealing use of hallucinogens around 3,000 years ago.
- Archaeology
What did Homo sapiens eat 170,000 years ago? Roasted, supersized land snails
Charred shell bits at an African site reveal the earliest known evidence of snail-meal prep, suggesting ancient humans cooked and shared the mollusks.
- Anthropology
A surprising food may have been a staple of the real Paleo diet: rotten meat
The realization that people have long eaten putrid foods has archaeologists rethinking what Neandertals and other ancient hominids ate.
- Archaeology
Some monkeys accidentally make stone flakes that resemble ancient hominid tools
A study of Thailand macaques raises questions about whether some Stone Age cutting tools were products of planning or chance.
- Archaeology
The Yamnaya may have been the world’s earliest known horseback riders
5,000-year-old Yamnaya skeletons show physical signs of horseback riding, hinting that they may be the earliest known humans to do so.
- Particle Physics
Muons unveiled new details about a void in Egypt’s Great Pyramid
The subatomic particles revealed the dimensions of the void, discovered in 2016, and helped researchers know where to stick a camera inside.
