In Brief: A symbiotic, color-changing relationship

For the tiny pea aphid, body color is a matter of life and death: Red and green color morphs determine their susceptibility to various predators and parasites in the wild.

In the test tube, teams reconstruct a cancer cell's beginning

What prompts normal cells to transform themselves into cancerous cells? Researchers from Texas institutions, including the UT Health Science Center San Antonio, have identified factors in the very first step of the process ...

Simple rubber device mimics complex bird songs

For centuries, hunters have imitated their avian prey by whistling through their fingers or by carving wooden bird calls. Now a team of physicists at Harvard University in Cambridge, Massachusetts, has reproduced many of ...

Global CO2 emissions back on the rise in 2010: study

Global carbon dioxide (CO2) emissions – the main contributor to global warming – show no sign of abating and may reach record levels in 2010, according to a study led by the University of Exeter (UK).

Tigers could be extinct in 12 years if unprotected

(AP) -- Wild tigers could become extinct in 12 years if countries where they still roam fail to take quick action to protect their habitats and step up the fight against poaching, global wildlife experts told a "tiger summit" ...

Leaking Siberian ice raises a tricky climate issue

(AP) -- The Russian scientist shuffles across the frozen lake, scuffing aside ankle-deep snow until he finds a cluster of bubbles trapped under the ice. With a cigarette lighter in one hand and a knife in the other, he lances ...

Air flows in mechanical device reveal secrets of speech pathology

From a baby's first blurted "bowl!'" for the word "ball" to the whispered goodbye of a beloved elder, the capacity for complex vocalizations is one of humankind's most remarkable attributes -- and perhaps one we take for ...

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