429 results
429 results for: grassland
- Animals
Elephant diets changed millions of years before their teeth
The animals fed on grasses long before their molars could grind the tough plants.
- Climate
Wetter permafrost clings to carbon better
In 12-year lab study, moist soil samples released less greenhouse gas as they warmed.
- Humans
From the August 1, 1936, issue
A destroyer revealed, light linked to chlorophyll, and hemoglobin analyzed.
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- Agriculture
Some bioenergy crops are greener than others
In the Upper Midwest, switchgrass trumps maize at boosting ecological health.
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19128
Perhaps much of the controversy about evolutionary psychology devolves from forgetting some basic biological definitions. The gene is the unit of inheritance, which has a complex and imprecise relationship with the mature, viable organism that has inherited it. The unit of evolution is the individual organism. Therefore, the arguments about what is more important in […]
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19779
Do cows and other domestic-herd animals really emit more methane than bison and other wild-herd animals emitted before people came along? Do grass, alfalfa, and other pasture plants remove less carbon dioxide than do forests? There were open grasslands before pastures replaced some forests. I hope the people who are researching these things take such […]
- Anthropology
Red-Ape Stroll
Wild orangutans regularly walk upright through the trees, raising the controversial possibility that the two-legged stance is not unique to hominids.
- Earth
The Big Dry
Parts of Australia have suffered from severe drought for more than a decade, and people, vegetation, and animals are feeling the heat.
- Ecosystems
Prairie Revival
Prairie restoration is attracting interest, but because so little long-term monitoring and comparative studies have been done, researchers are still wondering whether it's really possible to re-create a prairie.
- Animals
Not So Spineless
Looking for personalities in animals, even among spiders and insects, could add new twists to ideas about evolution and explain some odd animal behavior.
- Archaeology
La Brea del Sur
Excavations at tar pits in Venezuela suggest that the fossils found there may rival those of the famed Rancho La Brea tar pits in Southern California.
