SVT monde
Sur le Web

Nouveautés sur le Web


Articles les plus récents

Parasite's Harpoon-Loaded Canon Relies on Physics, Not Chemistry

vendredi 1er août 2014 — More Science, Biology, Evolution
The most complicated fungal cell known to science belongs to a parasite called Haptoglossa mirabilis first lured into a rotifer-baited trap in the soil of a tropical greenhouse in a Toronto suburb on... -- Read more on ScientificAmerican.com

Millions of Jellyfish-Like Creatures Wash Up on Western U.S. Beaches

Though not poisonous to most people, beachgoers should avoid the animals because their venom can cause stinging in the eyes and mouth -- Read more on ScientificAmerican.com

50 million years of incredible shrinking theropod dinosaurs

Some time round about 165 million years ago, the group of small, feathered dinosaurs that we call birds evolved from within the theropod radiation (theropods are the so-called `predatory dinosaurs':... -- Read more on ScientificAmerican.com

Colorful Birds Can Also Belt Tunes

A survey of the tanagers reveals that birds do not have to choose between colorful plumage and a melodious song. Karen Hopkin reports -- Read more on ScientificAmerican.com

Mother Octopus Sets Longest Egg-Tending Record: More Than 4 Years on Baby Watch

mercredi 30 juillet 2014 — More Science, Biology, Evolution
Animals can take a year to gestate, but a deep-sea octopus has broken all previous records, hatching her eggs after 53 months -- Read more on ScientificAmerican.com

Nearly Extinct Mussel Gets One Last Chance at Survival

Freshwater mussels have a particularly unusual system of reproduction. Males release their sperm into the water with the hope that a nearby female will siphon them up to fertilize her eggs. -- Read more on ScientificAmerican.com

Roach Reactions to Venom Point to Targeted Pesticides

Small changes in the protein sequence of sodium channels of American compared with German cockroaches leave the latter susceptible to a venom that has little effect on the former. Cynthia Graber... -- Read more on ScientificAmerican.com

All 8 Pangolin Species Being Eaten into Extinction

A few days ago customs officials in Vietnam raided a cargo ship from Sierra Leone and seized an astonishing 1.4 tons of dried pangolin scales. -- Read more on ScientificAmerican.com

Proposal to Ban Import of Boa Constrictors Draws Backlash

A U.S. proposal to ban the import and interstate sale of boa constrictors and four other snake species prompted protests from exotic pet owners and concern among Florida wildlife regulators who fear... -- Read more on ScientificAmerican.com

Bad Timing to Blame for Big Dinosaur Extinction

lundi 28 juillet 2014 — Evolution, Dinosaurs, Space
The coupling of the space rock that crashed into Earth with a period of low diversity among herbivorous dinosaurs may have set the stage for the massive die-off 65-million years ago -- Read more on ScientificAmerican.com

Accueil du site | Contact | Plan du site | Espace privé | Statistiques | visites : 7278213

Suivre la vie du site fr    ?

Site réalisé avec SPIP 1.9.2e + ALTERNATIVES

Creative Commons License