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How Homo sapiens Became the Ultimate Invasive Species

mercredi 15 juillet 2015 — Features, More Science, Evolution, Archaeology & Paleontology

Many human species have inhabited Earth. But ours is the only one that colonized the entire planet. A new hypothesis explains why -- Read more on ScientificAmerican.com

Scientific American

Oldest Animal Sperm Found inside Fossilized Worm Cocoon

mercredi 15 juillet 2015 — More Science, Biology, Evolution, Archaeology & Paleontology, Evolutionary Biology

The remains of a preserved 50-million-year-old cell may provide clues to the evolution of earthworms and leeches -- Read more on ScientificAmerican.com

Scientific American

Hitchhiking Worms Survive Slug Guts Transport

lundi 13 juillet 2015 — More Science, Biology, Ecology, Evolution, Evolutionary Biology

Nematode worms hitch rides inside the guts of slugs and other invertebrates, and emerge alive and well after exiting with the rest of the digestive track's products. Karen Hopkin reports -- Read more on ScientificAmerican.com

Scientific American

Why Red Algae Never Packed Their Bags for Land

lundi 13 juillet 2015 — Evolution, Evolutionary Biology

Red algae have shockingly few genes for a multicellular organism - far fewer than a single-celled green alga - and this may explain why they never colonized land. -- Read more on ScientificAmerican.com

Scientific American

Hong Kong Panda Bears Down on World Record for Longevity

lundi 13 juillet 2015 — More Science, Everyday Science, Evolution, Health

The oldest giant panda living in captivity is set to challenge the world record for the animals' longevity, with her age said to put her on par with a human centenarian -- Read more on ScientificAmerican.com

Scientific American

Conservationists Decry U.S. Move to Not Penalize Hunter Who Killed Famed Wolf

dimanche 12 juillet 2015 — Energy & Sustainability, CONSERVATION, Evolution

The Utah hunter mistakenly shot and killed a gray wolf that had gained an international following for being the first of its kind seen at the Grand Canyon in 70 years -- Read more on ScientificAmerican.com

Scientific American

What Siberian Burials Reveal about the Relationship between Humans and Dogs

samedi 11 juillet 2015 — Web Exclusives, More Science, Evolution, Evolutionary Biology

The Kitoi hunter–gatherers gave their dogs elaborate mortuary rituals -- Read more on ScientificAmerican.com

Scientific American

Shark Bites Are Up, but Attack Risk Is Down?

samedi 11 juillet 2015 — More Science, Everyday Science, Society & Policy, Energy & Sustainability, CONSERVATION, Ecology, Evolution

California coast visitors are now 91 percent less likely to be bitten by a great white than they were in 1950, likely because beach populations of humans have risen dramatically -- Read more on ScientificAmerican.com

Scientific American

Bouncing Bots

jeudi 9 juillet 2015 — More Science, Energy & Sustainability, Evolution, Technology

The robots may navigate better because 3-D printing allows for a quick combination of multiple materials. Click here for a transcript of this video. -- Read more on ScientificAmerican.com

Scientific American