06/05/2010

Ancient leaves help researchers understand future climate

Potential climate change caused by rising levels of carbon dioxide might be better understood by examining fossil plant remains from millions of years ago, according to biogeochemists. The types of carbon within the leaves ...

Chromosome 'glue' surprises scientists

Proteins called cohesins ensure that newly copied chromosomes bind together, separate correctly during cell division, and are repaired efficiently after DNA damage. Scientists at the Carnegie Institution have found for the ...

TED Talks take to TV

Thought-sparking TED talks that have won legions of followers on the Internet are spreading to television stations around the world.

New nerve cells -- even in old age

After birth the brain looses many nerve cells and this continues throughout life - most neurons are formed before birth, after which many excess neurons degenerate. However, there are some cells that are still capable of ...

Lake-bed trails tell ancient fish story

The wavy lines and squiggles etched into a slab of limestone found near Fossil Butte National Monument are prehistoric fish trails, made by Notogoneus osculus as it fed along a lake bottom, says Emory University paleontologist ...

If only a robot could be more like a cockroach

Studies have indicated that insects rely on their brains to respond to what they feel and see. But for the first time, researchers have shown a direct link between neurons at the center of an insect brain and changes in behavior. ...

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