426 results
426 results for: grassland
- Anthropology
Southern Reindeer Folk
Western scientists make their first expeditions to Mongolia's Tsaatan people, herders who preserve the old ways at the southernmost rim of reindeer territory.
- Ecosystems
State of U.S. Agro-ecosystems
About one-quarter of the United States’ land cover, excluding Alaska, is farmed–some 430 million to 500 million acres. A massive new project has just assessed this and other food-producing environments, such as coastal waters, fresh waters, and rangelands, to tally factors contributing to health. Released on Sept. 24, it indicates that most ecosystems are undergoing […]
- Anthropology
Evolution’s Surprise: Fossil find uproots our early ancestors
Researchers announced the discovery of a nearly complete fossil skull, along with jaw fragments and isolated teeth, from the earliest known member of the human evolutionary family, which lived in central Africa between 7 million and 6 million years ago.
- Earth
Greenhouse Gassed
Scientists are discovering that more carbon dioxide in the air could spell disaster for plants and the animals that love to eat them.
- Animals
Camelid Comeback
The future of vicuñas in South America and wild camels in Asia hinges on decisions being made now about their management.
- Anthropology
Our family tree does the splits…
Large-scale changes in climate and habitats may have sparked the evolution of many new animal species in Africa beginning 7 million to 5 million years ago, including a string of new species in the human evolutionary family.
- Earth
A Nation Aflame
In the wake of one of the worst fire seasons in the past 50 years, scientists are assessing risk as more people move into fire-prone areas and developing ways to better predict the behavior of--and the potential for--wildfires.
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