429 results
429 results for: grassland
- Archaeology
Neandertals were the first hominids to turn forest into grassland 125,000 years ago
Neandertals’ campfires, hunting and other activities altered the land over 2,000 years, making them the first known hominids to impact their environs.
- Archaeology
Clovis hunters’ reputation as mammoth killers takes a hit
Early Americans’ stone points were best suited to butchering the huge beasts’ carcasses, scientists contend.
- Life
Some songbirds now migrate east to west. Climate change may play a role
In recent decades, more Richard's pipits are wintering in Europe than before. It may signal the establishment of a totally new migration route.
- Animals
Huge numbers of fish-eating jaguars prowl Brazil’s wetlands
Jaguars in the northern Pantanal ecosystem primarily feed on fish and caiman, living at densities previously unknown for the species.
- Humans
Fossils and ancient DNA paint a vibrant picture of human origins
Paleoanthropologists have sketched a rough timeline of how human evolution played out, centering the early action in Africa.
- Earth
Mixing trees and crops can help both farmers and the climate
Agriculture is a major driver of climate change and biodiversity loss. But integrating trees into farming practices can boost food production, store carbon and save species.
- Environment
Why planting tons of trees isn’t enough to solve climate change
Massive projects need much more planning and follow-through to succeed – and other tree protections need to happen too.
- Ecosystems
Wildfires launch microbes into the air. How big of a health risk is that?
How does wildfire smoke move bacteria and fungi — and what harm might they do to people when they get there?
- Archaeology
Ivory from a 16th century shipwreck reveals new details about African elephants
Ivory from the sunken Portuguese trading ship Bom Jesus contains clues about elephant herds that once roamed Africa, and the people who hunted them.
- Paleontology
Why South America’s ancient mammals may have lost out to northern counterparts
When North and South America joined millions of years ago, mammals from the north fared better in the meetup. Extinctions in the south may be why.
- Anthropology
Seven footprints may be the oldest evidence of humans on the Arabian Peninsula
In what’s now desert, people and other animals stopped to drink at a lake more than 100,000 years ago, a new study suggests.
- Anthropology
An ancient social safety net in Africa was built on beads
A Stone Age network of communities across southern Africans was established using ostrich shell beads by around 33,000 years ago.
