(Phys.org)—Willow trees cultivated for 'green energy' can yield up to five times more biofuel if they grow diagonally, compared with those that are allowed to grow naturally up towards the sky.
Biotechnology
Jan 20, 2013
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(Phys.org)—Our closest relatives, the great apes, are all endangered and particularly sensitive to infectious diseases. Both chimpanzees and western gorillas experience seasonal variations in fruit availability but little ...
Plants & Animals
Jan 11, 2013
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Prickly holly leaves are a traditional Christmas decoration, from wreaths adorning homes, to greeting card scenes. Yet, look closer at a holly tree and while some leaves are prickly, others are not. Scientists writing in ...
Plants & Animals
Dec 12, 2012
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Every organism produces a staggering variety of molecules, each with its own particular biological function. Complex interplay between genetic and environmental factors determines the production levels for each compound. ...
Biotechnology
Jul 13, 2012
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Analysis of chromosome number variation among species of a North American group of prickly pear cacti (nopales) showed that the most widespread species encountered are of hybrid origin. Those widespread species likely originated ...
Plants & Animals
Feb 14, 2012
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There are 16,000 types of parasitic roundworms causing illnesses in humans and animals. Controlling their effects on health becomes more difficult as the medicines used to treat them become less effective. A University of ...
Cell & Microbiology
Feb 3, 2012
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(PhysOrg.com) -- A major driving force of evolution comes from mistakes made by cells and how organisms cope with the consequences, University of Arizona biologists have found. Their discoveries offer lessons for creating ...
Evolution
Jan 24, 2011
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Studies of heavy, fast-growing hens and small, slow-growing hens provide important new knowledge on the origin of the genetic variation that has enabled them to adapt rapidly to new extreme environments. This is shown by ...
Biotechnology
Nov 5, 2010
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(PhysOrg.com) -- In general, population extinction is a natural process. For one reason or another, an estimated 99.9% of all species that have lived on Earth are now extinct. However, the reasons for a species going extinct ...
