Accueil > Communication > Actualités scientifiques > Articles de presse > Articles de presse - Sciences

Articles de presse - Sciences RSS des Articles de presse - Sciences

Page(s) : < | 1 | ... | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | ... | 445 |

12 avril 2018

La taphonomie, qu’est ce que c’est ? [The Conversation]

Comment des os, voire de la peau ou des plumes d’animaux disparus, espèces éteintes parfois depuis des millions d’années peuvent-ils se fossiliser et arriver jusqu’à nous ? Quels enseignements tirer d’une accumulation d’ossements et d’outils ou de traces d’activités humaines du passé ?

Lire la suite

12 avril 2018

Species with big sex differences are more likely to die out [New Scientist]

It was Darwin who realised that sexual selection by females can lead to the evolution of extreme traits in males– from colourful plumage to extravagant dances and displays – that reduce their overall fitness. Biologists have been arguing about how this affects the long-term survival of species ever since.

Lire la suite

12 avril 2018

The Elusive Calculus of Insects’ Altruism and Kin Selection [Quantamagazine]

How the ultra-cooperative behavior of ants, bees and other social insects could have evolved continues to challenge formal analysis. But a new theory that includes hedging bets against nature’s unpredictability may help to change the math and shift the debate.

Lire la suite

12 avril 2018

Droughts mean fewer flowers for bees [Phys]

Bees could be at risk from climate change because more frequent droughts could cause plants to produce fewer flowers, new research shows.

Lire la suite

12 avril 2018

200-million-year-old insect color revealed by fossil scales [Phys]

Can researchers determine the color of a 200-million-year-old insect ? Scientists from China, Germany and the U.K. have new evidence that reveals the true color of fossil insects. The research was recently published in Science Advances.

Lire la suite

Page(s) : < | 1 | ... | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | ... | 445 |