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Some Lichen Fungi Let Genes Go Bye

vendredi 2 mars 2018 par Karen Hopkin — Environment, The Sciences, Biology, Evolution

A study of 22 different types of lichens revealed 10 included fungi that had lost a gene for energy production, making them completely dependent on their algal partner. -- Read more on ScientificAmerican.com

Scientific American

Scientists Have Reconstructed the Genome of a Bird Extinct for 700 Years

mardi 27 février 2018 par Sharon Begley, STAT — Health, The Sciences, Biology, Evolution

The work hinged on DNA from a museum specimen -- Read more on ScientificAmerican.com

Scientific American

Food for Thought: Was Cooking a Pivotal Step in Human Evolution?

lundi 26 février 2018 par Alexandra Rosati — Health, Mind, Neuroscience, The Sciences, Evolution

The dietary practice coincided with increases in brain size, evidence suggests -- Read more on ScientificAmerican.com

Scientific American

How Baby Birds Learn to Duet

vendredi 23 février 2018 par Christopher Intagliata — Mind, Cognition, The Sciences, Biology, Evolution

Recordings of songbird duets reveal baby birds learn conversational turn-taking like we do: gradually, and from adults. Christopher Intagliata reports. -- Read more on ScientificAmerican.com

Scientific American

Ancient Cave Paintings Clinch Case for Neandertal Symbolism

vendredi 23 février 2018 par Kate Wong — The Sciences, Evolution

Abstract images in Spanish caves date back 65,000 years—millennia before Homo sapiens set foot in Europe—settling a long-running debate over Neandertal cognition -- Read more on ScientificAmerican.com

Scientific American

Ancient Cave Paintings Clinch the Case for Neandertal Symbolism

vendredi 23 février 2018 par Kate Wong — The Sciences, Evolution

Scientific American

Mosquitoes Learn the Smell of Danger

jeudi 22 février 2018 par Karen Hopkin — Health, Medicine, The Sciences, Biology, Evolution

The bloodsuckers lose their appetite for attractive scents when they associate those aromas with a likelihood of being swatted. Karen Hopkin reports. -- Read more on ScientificAmerican.com

Scientific American

Paleo Profile: The Chimera Spider

lundi 19 février 2018 par Brian Switek — The Sciences, Evolution

An ancient arachnid related to early spiders shows a strange mix of features -- Read more on ScientificAmerican.com

Scientific American

Fake Mushroom Lures Pollinators into Floral Trap

lundi 19 février 2018 par Jennifer Frazer — The Sciences, Evolution

Unassuming houseplant uses alter ego to get lucky at insects' expense -- Read more on ScientificAmerican.com

Scientific American

Beetle Liberation Due to Regurgitation

mercredi 14 février 2018 par Karen Hopkin — The Sciences, Biology, Chemistry, Evolution

The bombardier beetle can spray its hot brew of toxic chemicals even after bring swallowed, to force a predator into vomiting it back out. -- Read more on ScientificAmerican.com

Scientific American