Forest birds evolved early, DNA shows

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A yellow warbler. Courtesy Mike Hopiak
A yellow warbler. Courtesy Mike Hopiak

(PhysOrg.com) -- Evolution seems to have happened in fits and starts -- at least that's what the fossil record shows. From trilobites to pterodactyls, ammonites to Archaeopteryx, scientists find the same pattern: brief bursts of innovation in which a single species or branch on the tree of life turns into a cluster of new twigs, then lapses into long stretches ruled by the status quo.


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All News summaries for July 10, 2008

Economists: Tough measures needed to cure economic ills

7 hours ago | User rating: not rated yet
(PhysOrg.com) -- An ailing financial industry is going to need strong medicine to pull out of a deepening credit crunch brought on by risky loans and deregulation, Purdue University economists said Monday.

Koalas calling

8 hours ago | User rating: not rated yet
With the help of mobile phone technology, UQ researchers are set to decipher the distinctive grunting noises made by male koalas during the spring mating season.

The Color of Evolution: How One Fish Became Two Fish

8 hours ago | User rating: not rated yet
(PhysOrg.com) -- Ever since Darwin discovered that species can evolve, scientists have wondered how new species form. Answering this question is the key to understanding the diversity of all of life. A group ...

New research may help to design better gene therapy vectors

9 hours ago | User rating: not rated yet
(PhysOrg.com) -- Research published by scientists from the University of Reading may offer an insight into ways of making safer and more specific gene therapy vectors. The research, published in the journal Nature Structural ...

Olive oil ingredient ups the time between meals

9 hours ago | User rating: not rated yet
A fatty acid found in abundance in olive oil and other "healthy" unsaturated fats has yet another benefit: it helps keep the body satisfied to prolong the time between meals.
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