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Hobbits Were a Separate Species, Ancient Chompers Show
Teeth from these diminutive individuals suggest they belonged to a unique species rather than a modern human with a growth disorder, as previously suspected -- Read more on ScientificAmerican.com
Ears: Do Their Design, Size and Shape Matter?
An “eary” project from Science Buddies -- Read more on ScientificAmerican.com
Female Vocalists Are in the (Mouse) House
Careful recordings of mouse interactions find that females vocalize, overturning the long-held view that only males sing during courtship -- Read more on ScientificAmerican.com
"Supergene" Determines Wading Birds' Sex Strategy
Male ruffs look and behave differently around females, depending on their version of a 125-gene stretch of DNA -- Read more on ScientificAmerican.com
Mysterious Group of Extinct Humans Was More Diverse Than Neandertals
DNA from Denisovans suggests they lived in Siberia for millennia and were more genetically diverse than Neandertals, but less diverse than modern humans -- Read more on ScientificAmerican.com
Why Cats Taste No Sweets
An old gene mutation is at fault -- Read more on ScientificAmerican.com
Did Dark Matter Kill the Dinosaurs? A Q&A with Author Lisa Randall
In her new book Randall probes the connections between seemingly unrelated phenomena in our universe -- Read more on ScientificAmerican.com
The Greatest Vanishing Act in Prehistoric America
Seven centuries ago, tens of thousands of people fled their homes in the American Southwest. Archaeologists are trying to work out why -- Read more on ScientificAmerican.com
Howler Monkeys Trade Testicles for Decibels
vendredi 13 novembre 2015 — The Body, Ecology, The Sciences, Biology, Evolution, Evolutionary Biology
Among howler monkey species, loud calls come at the expense of testicle size and sperm production—or to put it another way, monkeys with the largest testes don't make as much noise -- Read more on ScientificAmerican.com
500-Million-Year-Old Brains and Life in the Universe
vendredi 13 novembre 2015 — The Sciences, Biology, Evolution, Archaeology & Paleontology, Evolutionary Biology, Space, Extraterrestrial Life
A new study provides substantial support for earlier claims of 520-million-year-old arthropod brain systems, raising interesting questions about the nature of brains, life, and intelligence in the... -- Read more on ScientificAmerican.com
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