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A Missing Genetic Link in Human Evolution

lundi 6 janvier 2014 — More Science, Biology, Evolution, Evolutionary Biology

Mysterious episodes of genetic duplication in our great ape ancestors may have paved the way for human evolution -- Read more on ScientificAmerican.com

Scientific American

A Missing Genetic Link in Human Evolution

lundi 6 janvier 2014 — Evolution,More Science,Evolutionary Biology,Biology,Evolution

From Quanta Magazine ( find original story here ). [More] -- Read more on ScientificAmerican.com

Scientific American

Why drugs are expensive: It's the science, stupid.

lundi 6 janvier 2014 — Evolution,Mind & Brain,More Science,Health,Technology

A cartoon representation of part of the protein PCSK9, a significant new target for reducing cholesterol that until now has thwarted efforts to drug it (Image: Wikipedia Commons) This is part 1 of... -- Read more on ScientificAmerican.com

Scientific American

Sunday Species Snapshot: Forest Owlet

dimanche 5 janvier 2014 — Energy & Sustainability,More Science,Evolution

Scientific fraud almost led to this tiny owl’s extinction. Species name: Forest owlet ( Heteroglaux blewitti ). Known locally as dongar dudaa. [More] -- Read more on ScientificAmerican.com

Scientific American

Evolving proteins - no DNA required

dimanche 5 janvier 2014 — Evolution,More Science

Prions are the infective agents that cause transmissible spongiform encephalopathies such as Mad Cow Disease in humans. All prions affect the brain or neural tissues and are currently untreatable.... -- Read more on ScientificAmerican.com

Scientific American

False Killer Whales and Bottlenose Dolphins Swim Together for Years

dimanche 5 janvier 2014 — More Science,Evolution,Biology

In the waters off the northern coast of New Zealand swims a group of one of the world's most poorly understood cetaceans. Named for their resemblance to their better-known cousins, false killer... -- Read more on ScientificAmerican.com

Scientific American

Grassland earless dragons

samedi 4 janvier 2014 — Evolution

Captive Grassland earless dragon climbing in tussock; image by Tony Gamble, used with permission. Today: LIZARDS. Even better: obscure Australian agamids, or dragon lizards, or dragons, if you... -- Read more on ScientificAmerican.com

Scientific American

When Was the Last Time Volcanoes Erupted on the East Coast?

jeudi 2 janvier 2014 — More Science, Everyday Science, History of Science, Science Education, Climate, Evolution

Volcanoes on the East Coast of North America are more recent than you think—and they may be why the region still suffers relatively large earthquakes -- Read more on ScientificAmerican.com

Scientific American

When Was the Last Time Volcanoes Erupted on the East Coast?

jeudi 2 janvier 2014 — More Science,Everyday Science,Climate,Evolution,Science Education,History of Science

How Mole Hill in Virginia became a mountain is an old story, but not as old as some geologists think. The reason for that has to do with volcanoes--and may help explain why the U.S. East Coast, so... -- Read more on ScientificAmerican.com

Scientific American

Are Straight Women and Gay Men "Natural Allies"? An Evolutionary Account

jeudi 2 janvier 2014 — Evolution,Mind & Brain

Still from the movie G.B.F (2013, "Gay Best Friend") Not every gay man has a female best friend, nor does every straight woman have a gay man as her most trusted confidant. But according to a... -- Read more on ScientificAmerican.com

Scientific American