5,512 results
5,512 results for: Forests
- 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.
-
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. […]
-
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.
- Earth
Avalanche!
Laboratory studies of how snow crystals change shape under fluctuating environmental conditions and computer analyses that match the patterns of past avalanches with detailed meteorological data are helping scientists uncover the secrets of avalanches.
-
18951
That is a neat little recycle program described in “New test traces underground forest carbon.” As fast as the CO2 comes out of the ground, the tree grabs the carbon by photosynthesis and leaves two oxygen atoms in the atmosphere. A portion of the carbon is stored until the wood rots or burns. Some carbon […]
- Earth
Warm spell did little for Eocene flora
A rapid warming period that began the Eocene epoch dramatically reshaped North America's animal community but not the continent's plants.
- Health & Medicine
Aerial War against Disease
Researchers around the world are catching on to the idea of using satellites to predict where diseases may strike.
-
Biology of rank: Social status sets up monkeys’ cocaine use
Male monkeys' position in the social pecking order influences their brain chemistry in ways that promote either resistance or susceptibility to the reinforcing effects of cocaine.
- Plants
Petite pollinators: Tree raises its own crop of couriers
A common tropical tree creates farms in its buds, where it raises its own work force of tiny pollinators.
-
Save Our Sounds
Some 14 libraries around the world have built up substantial collections of natural sounds, from bird songs to fish hums.
