Sur le Web

Nouveautés sur le Web

Articles les plus récents

We Need Leaders Who Share John F. Kennedy's Vision of World Peace

vendredi 22 novembre 2013 — Evolution,Health,More Science

To commemorate the 50 th anniversary of the death of President John F. Kennedy, I’m reposting a column about his “Peace Speech,” which he gave less than six months before his... -- Read more on ScientificAmerican.com

Scientific American

The Incredible Mr./Mrs. Limpet: The Endangered, Sex-Changing Sea Snail

vendredi 22 novembre 2013 — Energy & Sustainability,More Science,Evolution

A needle biopsy reveals the sex of a ribbed Mediterranean limpet. The reddish fluid in the syringe indicates that the limpet is a female. Photo by Iv?n Acevedo Understanding how an endangered... -- Read more on ScientificAmerican.com

Scientific American

Fungi on the March: My New Feature Story for Scientific American

jeudi 21 novembre 2013 — Evolution,Health

The human pathogenic yeast C. neoformans, a close and visually indistinguishable relative of a fungus that appeared mysteriously on Vancouver Island over a decade ago. CDC/Public Domain. Click for... -- Read more on ScientificAmerican.com

Scientific American

The Good and Bad News about Frog Abnormalities

jeudi 21 novembre 2013 — Evolution,Environment,Health,Society & Policy,Evolutionary Biology,Evolution,Energy & Sustainability,Biology,More Science

Mari Reeves has several deformed frogs living on her dining room table in Anchorage, Alaska. One of them, named Skinny by her literally minded six-year-old son, has a leg that bends back on itself,... -- Read more on ScientificAmerican.com

Scientific American

New Views into the Octopus's Bizarre Moves

jeudi 21 novembre 2013 — Evolution,More Science,Mind & Brain,Technology

Image courtesy of Flickr/ideakitchn We’ve known for centuries that octopuses get around one of two ways: one, by crawling over surfaces with their arms, or, two, swimming with the help of... -- Read more on ScientificAmerican.com

Scientific American

The only two equations that you should know: Part 1

jeudi 21 novembre 2013 — Energy & Sustainability,Mind & Brain,Space,More Science,Evolution,Health,Technology

The exponential relationship between equilibrium constant and free energy, the basis of chemistry and life. “Chemistry”, declared Roger Kornberg in an interview, “is the queen... -- Read more on ScientificAmerican.com

Scientific American

Americas' Natives Have European Roots

jeudi 21 novembre 2013 — Evolution,Health,Society & Policy,More Science,Biotechnology,Evolution,Evolutionary Biology,Biotechnology,Archaeology & Paleontology

The 24,000-year-old remains of a young boy from the Siberian village of Mal’ta have added a new root to the family tree of indigenous Americans. While some of the New World's native... -- Read more on ScientificAmerican.com

Scientific American

Man's Best Friend or Oversized Rat?

mercredi 20 novembre 2013 — Evolution,Mind & Brain

Here’s something curious. The phrase “man’s best friend” didn’t appear in print, according to Google’s n-grams , until after the year 1750. Here’s something... -- Read more on ScientificAmerican.com

Scientific American

Fenced-In Lions Divide Wildlife Conservationists

mercredi 20 novembre 2013 — Evolution,Society & Policy,Evolution,Biology,More Science

Times are grim for the king of the beasts. Roughly 35,000 African lions roam the savannahs, down from more than 100,000 half a century ago, thanks to habitat loss, declining numbers of prey animals... -- Read more on ScientificAmerican.com

Scientific American

Winning two Nobel Prizes, turning down knighthoods: The legacy of Fred Sanger (1918-2013)

mercredi 20 novembre 2013 — Evolution,Mind & Brain,More Science,Health,Technology

Fred Sanger (1918-2013) (Image: The Telegraph) British biochemist Fred Sanger died today at 95. He’s the only person to win two Nobel Prizes in chemistry, an achievement that is... -- Read more on ScientificAmerican.com

Scientific American