5,541 results
5,541 results for: Forests
- Humans
Partial skeleton gives ancient hominids a new look
African hominid fossils, including a partial skeleton, reveal a surprising mix of features suitable for upright walking and tree climbing 4.4 million years ago.
- Chemistry
Flowerless plants make fancy amber
A new analysis suggests that ancient seed plants made a version of the fossilized resin credited to more modern relatives
- Anthropology
Pygmies’ short stature linked to high death rates
Island-dwelling pygmies provide contested evidence that body size shrinks as mortality rates climb.
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19261
This article raised so many questions. Do children who play in the dirt get their increased immune resistance from phages in the dirt? Is there a phage connection in the AIDS story? Does the risk of dying of heart attacks have a phage connection? If so, is group A Streptococcus involved? Do we need a […]
- Paleontology
Genes Seem to Link Unlikely Relatives
Genetic markers on three proteins suggest a common African ancestor for elephants, aardvarks, elephant shrews, golden moles, and other animals.
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Warblers make species in a ring
Genetic and song analyses of the greenish warblers in forests around the Tibetan Plateau suggest the birds represent a long-sought evolutionary quirk called a ring species.
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Depression linked to heart deaths
In a community sample, people suffering from moderate to severe depression exhibited an elevated death rate from heart disease over a 4-year study period, even if they had no discernable heart disease to begin with.
- Earth
Ancient tree rings reveal past climate
Using tree-ring analysis, an international team of researchers has reconstructed the earliest record of annual climate variation.
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Gender-bending flowers spice forests
In a newly discovered trick for avoiding self-pollination, ginger flowers take turns at gender roles, switching from female to male or vice versa in unison around lunchtime.
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Weather cycles may drive toad decline
For the first time, scientists have linked a global climate pattern to a specific mechanism of amphibian decline.
- Math
Doing the Wave
It was the first home game of the season for the University of Maryland football team. About 48,000 fans had crowded into Byrd Stadium to watch the Terrapins take on the University of Akron Zips. Inevitably, during a lull in what turned out to be a rather one-sided contest, the assembled spectators created their own […]
- Math
Recycling Topology
It’s hard to miss the triangle of three bent arrows that signifies recycling. It appears in newspapers and magazines and on bottles, envelopes, cardboard cartons, and other containers. The recycling symbol. Alternative (incorrect?) rendering of the recycling symbol. Cliff Long made a Möbius band the basis of his wood carving “Bug on a Band.” Photo […]
