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Archive for the ‘Biology’ Category

Ants are True Farmers

By admin • Mar 25th, 2008 • Category: Biology

It turns out ants, like humans, are true farmers. The difference is that ants are farming fungus.
Entomologists Ted Schultz and Seán Brady at the Smithsonian’s National Museum of Natural History have published a paper in the March 24 issue of the journal Proceedings of the National Academy of Sciences, providing new insight into the agricultural […]

Popularity: 14% [?]



Coral’s Addiction to Junk Food

By admin • Mar 24th, 2008 • Category: Biology

Over two hundred million humans depend for their subsistence on the fact that coral has an addiction to ‘junk food’ - and orders its partners, the symbiotic algae, to make it.
This curious arrangement is one of Nature’s most delicate and complex partnerships – a collaboration now facing grave threats from climate change.
Popularity: 13% [?]

Popularity: 13% [?]



Tuatara, the Fastest Evolving Animal

By admin • Mar 20th, 2008 • Category: Biology

In a study of New Zealand’s “living dinosaur” the tuatara, evolutionary biologist, and ancient DNA expert, Professor David Lambert and his team from the Allan Wilson Centre for Molecular Ecology and Evolution recovered DNA sequences from the bones of ancient tuatara, which are up to 8000 years old.
They found that, although tuatara have remained largely […]

Popularity: 12% [?]



Ancient Lemur’s Little Finger Poses Mystery

By admin • Mar 20th, 2008 • Category: Biology

Analysis of the first hand bones belonging to an ancient lemur has revealed a mysterious joint structure that has scientists puzzled.
Pierre Lemelin, an assistant professor of anatomy at the University of Alberta in Edmonton, Canada, and a team of fellow American researchers have analyzed the first hand bones ever found of Hadropithecus stenognathus, a lemur […]

Popularity: 12% [?]



How Brain Learns to Estimate Risk

By admin • Mar 12th, 2008 • Category: Biology

Researchers from EPFL and Caltech have made an important neurobiological discovery of how humans learn to predict risk. The research, appearing in the March 12 issue of the Journal of Neuroscience, will shed light on why certain kinds of risk, notably financial risk, are often underestimated, and whether abnormal behavior such as addiction (e.g. […]

Popularity: 12% [?]



Bigger Brains are Better

By admin • Mar 12th, 2008 • Category: Biology

There’s new evidence supporting the idea that bigger brains are better. A study of a tropical wasp suggests that the brainpower required to be dominant drives brain capacity.
University of Washington researchers have found that key processing regions in the brains of both males and females of one wasp species not only increased in size […]

Popularity: 19% [?]



A Startling Discovery on Photosynthesis

By admin • Mar 12th, 2008 • Category: Biology

A startling discovery by scientists at the Carnegie Institution puts a new twist on photosynthesis, arguably the most important biological process on Earth. Photosynthesis by plants, algae, and some bacteria supports nearly all living things by producing food from sunlight, and in the process these organisms release oxygen and absorb carbon dioxide.
But two studies by […]

Popularity: 22% [?]



Ant World is Riddled with Cheating and Corruption

By admin • Mar 11th, 2008 • Category: Biology

Far from being a model of social co-operation, the ant world is riddled with cheating and corruption – and it goes all the way to the top, according to scientists from the Universities of Leeds and Copenhagen.
Ants have always been thought to work together for the benefit of the colony rather than for individual gain. […]

Popularity: 20% [?]



Mystery Behind the Strongest Creature in the World

By admin • Mar 11th, 2008 • Category: Biology

The strongest creature in the world, the Hercules Beetle, has a colour-changing trick that scientists have long sought to understand. Research published today, Tuesday, 11 March, in the New Journal of Physics, details an investigation into the structure of the specie’s peculiar protective shell which could aid design of ‘intelligent materials’.
The Hercules Beetle is remarkable, […]

Popularity: 13% [?]



Handheld DNA Detector

By admin • Mar 11th, 2008 • Category: Biology

A researcher at the National University at San Diego has taken a mathematical approach to a biological problem - how to design a portable DNA detector. Writing in the International Journal of Nanotechnology, he describes a mathematical simulation to show how a new type of nanoscale transistor might be coupled to a DNA sensor system […]

Popularity: 11% [?]