Archive: 17/12/2009

New research explains orchids' sexual trickery

A new study reveals the reason why orchids use sexual trickery to lure insect pollinators. The study, published in the January issue of The American Naturalist, finds that sexual deception in orchids leads to a more efficient ...

dateDec 17, 2009 in Plants & Animals
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Headwater stream nutrient enrichment disrupts food web

Human activity is increasing the supply of nutrients, such as nitrogen and phosphorus, to stream systems all over the world. The conventional wisdom -- bolstered by earlier research -- has held that these additional nutrients ...

dateDec 17, 2009 in Ecology
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Heme channel found

In some ways a cell in your body or an organelle in that cell is like an ancient walled town. Life inside either depends critically on the intelligence of the gatekeepers.

dateDec 17, 2009 in Cell & Microbiology
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Avatar's moon Pandora could be real

In the new blockbuster Avatar, humans visit the habitable - and inhabited - alien moon called Pandora. Life-bearing moons like Pandora or the Star Wars forest moon of Endor are a staple of science fiction. With NASA's Kepler ...

dateDec 17, 2009 in Astronomy
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