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East African cichlid fish offer new understanding of genetic basis of sex determination
Biologists have genetically mapped the sex chromosomes of several species of cichlid fish from Lake Malawi, East Africa, and identified a mechanism by which new sex chromosomes may evolve. view more (2009-10-02)
Investing in poor people in less-favoured areas
Joint policy seminar of Wageningen University & IFPRI: In preparation of the World Summit on Sustainable Development (WSSD) , Wageningen University and the International Food Policy Research Institute (IFPRI, Washington D.C.) celebrate a joint seminar to analyze the policy options for `investing in poor people in less-favoured areas`. In the... view more... (2002-07-10)
Female choice benefits mothers more than offspring
The great diversity of male sexual traits, ranging from peacock's elaborate train to formidable genitalia of male seed beetles, is the result of female choice. view more (2009-10-23)
Taking evolution's temperature: Researchers pinpoint the energy it takes to make a species
Writing this week in the Proceedings of the National Academy of Sciences, scientists say higher temperatures near the equator speed up the metabolisms of the inhabitants, fueling genetic changes that actually lead to the creation of new species. view more (2006-06-01)
Scientists unlock clues for tailoring corn plant for food, energy needs
Scientists have long known that the offspring of two inbred strains tend to be superior to both their parents. Now, a team of researchers including a University of Florida geneticist has discovered clues to why that might be the case for one of the most important crops in the world: corn. view more (2009-11-20)
11,000 alien species invade Europe
For the first time it is now possible to get a comprehensive overview of which alien species are present in Europe, their impacts and consequences for the environment and society. view more (2008-11-21)
Long-term study shows effect of climate change on animal diversity
Two species of giraffe, several rhinos and five elephant relatives, along with multitudes of rodents, bush pigs, horses, antelope and apes, once inhabited what is now northern Pakistan. view more (2008-09-23)
Researchers establish common seasonal pattern among bacterial communities in Arctic rivers
New research on bacterial communities throughout six large Arctic river ecosystems reveals predictable temporal patterns, suggesting that scientists could use these communities as markers for monitoring climate change in the polar regions. view more (2009-11-24)
Scientists discover global pattern of big fish diversity in open oceans
A new study released in Science (via Science Express) on July 28th reveals a striking downward trend in the diversity of fish in the open ocean - the largest and least known part of our planet. view more (2005-07-29)
Genetic Analysis of Asian Elephants in India Reveals Some Surprises
Researchers in India and from The Earth Institute at Columbia University have discovered that one of the few remaining populations of Asian elephants in India is actually two genetically distinct groups. view more (2005-12-20)
Designing microchips that contain multiple selves
Rice University computer engineers have created a way to design integrated circuits that can contain many multiple selves. view more (2008-06-12)
Arctic seed vault opens doors for 100 million seeds
The Svalbard Global Seed Vault opened today on a remote island in the Arctic Circle, receiving inaugural shipments of 100 million seeds that originated in over 100 countries. view more (2008-02-26)
Architectural plan revealed of doomsday arctic seed vault
The Norwegian government has revealed the architectural design for the Svalbard International Seed Vault, to be carved deep into frozen rock on an island not far from the North Pole. view more (2007-02-09)
Database shows effects of acid rain on microorganisms in Adirondack Lakes
Prior to the federal Clean Air Act, unhindered industrial emissions were released into the air throughout the Midwestern and Eastern United States for decades. Many of those harmful chemicals came right back down to earth in the form of acid rain, a chemical concoction that includes nitric and sulfuric acid. view more (2008-06-24)
Life Cycle of Operons Yields New Look at Bacterial Genetics
In a breakthrough that will immediately benefit biologists who study bacteria, and could in the future have bearing on the advancement of synthetic biology, a team of researchers has determined the life cycle of operons, small groups of genes with related functions that are co-transcribed in a single strand of messenger RNA. view more (2006-07-06)
The muskox suffered a loss of genetic diversity at the Pleistocene/Holocene transition
The tundra muskox, one of the few large northern mammals to have survived to the present day, saw its genetic diversity decrease greatly at the end of the Pleistocene period, around 10,000 years ago. view more (2005-10-06)
Decline of carbon dioxide-gobbling plankton coincided with ancient global cooling
The evolutionary history of diatoms -- abundant oceanic plankton that remove billions of tons of carbon dioxide from the air each year -- needs to be rewritten, according to a new Cornell study. view more (2009-01-09)
Scientists Find Bacteria Thriving on a Feast of Seafloor Rock
On the deep ocean floor, microbial life is feeding on fresh volcanic rock and flourishing with greater abundance than even the most optimistic scientists thought possible. According to a study published May 28 in the journal Nature, scientists have found bacteria growing on oceanic crust in concentrations that are thousands- to ten-thousand times... view more... (2008-05-29)
Expanding forests darken the outlook for butterflies, study shows
Changing environmental conditions in the Canadian Rockies are stifling the mating choices of butterflies in the region, say University of Alberta researchers. view more (2005-07-19)
If only the weeds would keep their genes to themselves
Family can be a blessing and a curse, and never more so than in the case of crop plants and their wild relatives. These wild and weedy relatives harbor unique and beneficial genes that may no longer be found in their cultivated siblings, but they also harbor genetic traits that farmers have intentionally selected against in their domesticated... view more... (2009-10-07)
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