sábado, 25 de febrero de 2012

Boom and bust cycle of marine biodiversity every 60 million years linked to uplifting of continents



Boom and bust cycle of marine biodiversity every 60 million years linked to uplifting of continents
SMITHSONIAN SCIENCE | 23 DE FEBRERO DE 2012
http://pulse.me/s/6h0W5


A mysterious cycle of booms and busts in marine biodiversity over the past 500 million years could be tied to a periodic uplifting of the world's cont... Read more

Study: Evolution of earliest horses driven by climate change

Study: Evolution of earliest horses driven by climate change
SCIENCE NEWS | 23 FEBRERO 2012

When Sifrhippus, the earliest known horse, first appeared in the forests of North America more than 50 million years ago, it ... Read more

viernes, 17 de febrero de 2012

How the first plant evolved

Alcohol Consumption as Self-Medication against Blood-Borne Parasites in the Fruit Fly

Microbial oasis discovered beneath the Atacama Desert

Microbial oasis discovered beneath the Atacama Desert
BIOLOGY NEWS NET | 16 DE FEBRERO DE 2012


Microbes grow in salt crystals below the Atacama Desert. Two metres below the surface of the Atacama Desert there is an 'oasis' ... Read more

Prions play key role in yeast survival and evolution

Prions play key role in yeast survival and evolution
MIT NEWS - TOPIC - BIOLOGY | 16 DE FEBRERO DE 2012
Misfolded proteins called prions are best known for causing neurodegenerative disorders such as Creutzfeldt-Jakob disease and ... Read more

A Molecule That Can Help Antibiotics Kill Superbugs | 80beats

A Molecule That Can Help Antibiotics Kill Superbugs | 80beats
DISCOVER MAGAZINE | 17 DE FEBRERO DE 2012


_K. pneumoniae_ Bacteria that have evolved defenses against antibiotics are something of a disaster waiting to happen. Whenever a new drug-resistant... Read more

miércoles, 15 de febrero de 2012

World’s Tiniest Chameleons Found in Madagascar



World's Tiniest Chameleons Found in Madagascar
SCIENCE | 15 DE FEBRERO DE 2012


Researchers have recently discovered four new chameleon species, which rank among the world's tiniest reptiles. Adults of the smallest species are jus... Read more

domingo, 12 de febrero de 2012

Amazing skin gives sharks a push

Amazing skin gives sharks a push
BIOLOGY NEWS NET | 9 DE FEBRERO DE 2012

Streamlined sharks are legendary for their effortless swimming. George Lauder from Harvard University, USA, explains that the ... Read more

sábado, 11 de febrero de 2012

An advantage of zebra stripes

Polarotactic tabanids find striped patterns with brightnezz and/or polarization modulation least attractive: an advantage of zebra stripes. Leer más...

martes, 7 de febrero de 2012

Another First For 3D Printing – Woman Receives Jaw Implant

Another First For 3D Printing – Woman Receives Jaw Implant
SCIENCE | 7 DE FEBRERO DE 2012



With 3D printing, doctors can now create better bone implants at less cost than with conventional implants. An 83-year-old woman suffering from a low... Read more

lunes, 6 de febrero de 2012

Exercise triggers stem cells in muscle

Exercise triggers stem cells in muscle
BIOLOGY NEWS NET | 6 DE FEBRERO DE 2012


Mesenchymal stem cells (green) accumulate in skeletal muscle following exercise and release growth factors to spur ... Read more

sábado, 4 de febrero de 2012

New procedure repairs severed nerves in minutes, restoring limb use in days or weeks

New procedure repairs severed nerves in minutes, restoring limb use in days or weeks
BIOLOGY NEWS NET | 4 DE FEBRERO DE 2012

American scientists believe a new procedure to repair severed nerves could result in patients recovering in days or weeks, ... Read more