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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

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

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

The Good and Bad News about Frog Abnormalities

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

New Views into the Octopus's Bizarre Moves

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

The only two equations that you should know: Part 1

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

Americas' Natives Have European Roots

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

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

Fenced-In Lions Divide Wildlife Conservationists

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

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

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

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