429 results
429 results for: grassland
- Humans
Ancient southern Africans took genetic evolution in a new direction
An ancient, shared set of human-specific genes underwent changes in a geographically isolated population after around 300,000 years ago, scientists say.
- Paleontology
Sloths once came in a dizzying array of sizes. Here’s why
A new fossil and DNA analysis traces how dozens of sloth species responded to climate shifts and humans. Just two small tree-dwelling sloths remain today.
- Archaeology
Neandertals mastered fire-making tools 400,000 years ago
Archaeologists found flint, iron pyrite to strike it and sediments where a fire was probably built several times at an ancient site in England.
- Animals
American burying beetles are making a comeback in Nebraska
Thanks to decades of conservation to restore private grasslands, numbers of the threatened insect are on the rise in the Loess Canyons.
- Anthropology
A foot fossil suggests a second early human relative lived alongside Lucy
Foot bones and other fossils have been attributed to Australopithecus deyiremeda, a recently discovered species that may shake up the human family tree.
- Climate
A lush, green Arabian Desert may have once linked Africa and Asia
Mineral formations in caves reveal recurring periods of humidity in the Arabian Desert over the last 8 million years.
- Animals
In a first, zebra cams reveal herds on the move with giraffes
Six zebras wore video cameras attached to collars, capturing the equines’ daily life. Sticking with giraffes may let the two species protect each other.
-
Megadroughts are on the rise worldwide
One of the most extreme megadroughts has helped fuel wildfires in Los Angeles County and elsewhere in California.
- Climate
As wildfires worsen, science can help communities avoid destruction
Blazes sparked in wild lands are devastating communities worldwide. The only way to protect them, researchers say, is to re-engineer them.
- Climate
From electric cars to wildfires, how Trump may affect climate actions
Trump’s first term, campaign pledges and nominees point to how efforts to address climate change and environmental issues may fare.
- Archaeology
Silk Road cities reached surprising heights in Central Asia’s mountains
Drones with lasers revealed hidden urban centers that may have aided trade and travel through mountainous regions during medieval times.
- Humans
Ancient horse hunts challenge ideas of ‘modern’ human behavior
An archaeological site in Germany suggests communal hunting and complex thinking emerged earlier in human evolution than once thought.
