5,531 results
5,531 results for: Forests
- Health & Medicine
Smart Drugs: Leukemia treatments nearing prime time
Three new drugs stop acute myeloid leukemia in mice, suggesting the treatments will work in people with this deadly blood cancer.
- Anthropology
Cultures of Reason
East Asian and Western cultures may encourage fundamentally different reasoning styles, rather than build on universal processes often deemed necessary for thinking.
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18957
The article says, “Logging and burning for agriculture currently claim about 1 percent of the Amazon rain forest per year.” This simply is not true. We have been hearing this and even more alarming “statistics” about Amazon deforestation for more than 20 years. Yet NASA Landsat images show that little more than 10 percent of […]
- Animals
Butterfly ears suggest a bat influence
Researchers have found the first bat-detecting ear in a butterfly and suggest that the threat of bats triggered the evolution of some moths into butterflies.
- Paleontology
Older Ancestors: Primate origins age in new analysis
A controversial new statistical model concludes that the common ancestor of primates lived 81.5 million years ago, about 16 million years earlier than many paleontologists have estimated.
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Kelp! Kelp!
We can’t see this forest for the seas, but several Web sites offer colorful introductions to the variety and complexity of kelp forests. The State University of New York at Stony Brook site presents a photo album of different kelp forests. The Monterey Bay National Marine Sanctuary pages summarize the ecology of these complex ecosystems. […]
- 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.
- Paleontology
Ancient Whodunit: Scientists indict wee suspects in ancient deaths
Evidence locked in 180,000-year-old sediments suggests that a toxic algae bloom was the cause of death for a large group of mammals that were fossilized intact on an ancient lake bottom.
- Earth
Hawaii’s Hated Frogs
Wildlife officials in Hawaii are investigating unconventional pesticides to eradicate invasive frogs—or at least to check their advance.
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From the January 4, 1930, issue
PILTDOWN MAN EARLIEST HUMAN BEING The ape-man of Darwin was read out of man’s family tree and the dawn-man of Sussex, older than 1,250,000 years, was elevated to the position of man’s progenitor by Dr. Henry Fairfield Osborn, president of the American Museum of Natural History, New York. A new picture was painted by Dr. […]
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From the December 12, 1931, issue
SCIENCE AT THE WORLDS CROSSROADS Everybody has heard of Barro Colorado, the hill that was turned into an island, and was set aside as a great animal sanctuary; but only a few persons have ever set foot on it. In the nature of things, an animal sanctuary cannot be opened to crowds of visitors, so […]
- Animals
Big woodpeckers trash others’ homes
Pileated woodpeckers destroy in an afternoon the nesting cavities that take endangered red-cockaded woodpeckers 6 years to excavate.
