The strange border between two habitats of the sea

April 27th, 2012 03:40 PM | Biology | Comments Off
The strange border between two habitats of the sea
Two of the most exotic types of ecosystem of the deep ocean are hydrothermal vents that expel hot water, and jets emanating from methane, which usually have a much lower temperature. Both ecosystems host life forms adapted to each stage ...

The many types of traits by which the ants are guided to find their nest

April 23rd, 2012 03:25 PM | Biology | Comments Off
The many types of traits by which the ants are guided to find their nest
Desert ants have adapted to life in a wilderness environment that provides very few reference points for orientation. Apart from the visual cues and odor, the ants use polarized sunlight as a compass, and to some extent, count your steps, ...

The newly sequenced genome of gorilla reveals its remarkable similarities to the Human Being

April 18th, 2012 06:01 AM | Biology | Comments Off
The newly sequenced genome of gorilla reveals its remarkable similarities to the Human Being
This is the first time scientists have been able to compare the genomes of four living apes: humans, chimpanzees, gorillas and orangutans of the four genomes, lacking only the sequence of the gorilla. This study provides a unique perspective on our ...

Magnetic fields can send particles to infinity

April 17th, 2012 03:08 AM | Physics | Comments Off
Magnetic fields can send particles to infinity
Researchers at the Complutense University of Madrid (UCM: Spain) have shown mathematically that charged particles in a magnetic field can escape to infinity without ever stopping. One condition is that the field generating the current loops located on the same ...

Eye and brain abnormalities in astronauts who have spent much time in space

April 16th, 2012 06:31 AM | Medicine | Comments Off
Eye and brain abnormalities in astronauts who have spent much time in space
Space motion sickness is the most common effect on short-term space travelers, but often stops spontaneously, even without having returned to Earth. In longer stays in space, other effects are triggered. Among these, the best known and, in principle, the ...

The fascinating symbiotic relationship between certain species of ants, fungi and bacteria

April 13th, 2012 12:57 PM | Biology | Comments Off
The fascinating symbiotic relationship between certain species of ants, fungi and bacteria
The leaf-cutter ants, known for carrying green leaves in his walks by tropical forests, are also working farmers who grow fungus gardens, which also include bacteria. Ants feed on the fungi of these gardens, but until now it was unclear ...

The orientation of the birds remains a mystery

April 12th, 2012 05:52 AM | Biology | Comments Off
The orientation of the birds remains a mystery
The iron-rich cells with pigeons on the peak are not neurons, as previously thought, but macrophages, a type of immune system cells. This is the unexpected result that a scientific team published in Nature. Remain unaccounted how birds sense the ...

The mechanism by which the lead wreaks havoc in the brain

April 11th, 2012 02:58 PM | Neuroscience | Comments Off
The mechanism by which the lead wreaks havoc in the brain
Lead exposure causes severe brain damage, with consequences that include reduced intelligence quotient (IQ) and reduced learning potential. However, the exact mechanism by which lead alters brain cells was largely unknown. New research, for which they have used advanced techniques ...

Possible way to treat cognitive impairment associated with depression

April 9th, 2012 02:54 PM | Neuroscience | Comments Off
Possible way to treat cognitive impairment associated with depression
When a person suffers from depression, his brain loses plasticity and adaptability, and therefore becomes less able to perform tasks such as storing memories. In a recent investigation has traced the origin of the lower brain plasticity, and has determined ...

Predatory snails refine poisons through a continuous duplication of genes

April 8th, 2012 04:11 PM | Biology | Comments Off
Predatory snails refine poisons through a continuous duplication of genes
When tropical marine cone snails dig their teeth like spears in their prey are injected with paralyzing venom composed of a powerful blend of over a hundred different neurotoxins. Biologists have known for over a decade that the genes that ...
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