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Humans Are All More Closely Related Than We Commonly Think
lundi 5 octobre 2020 par Scott Hershberger — The Sciences, Evolution
Humanity’s most recent common ancestor and so-called genetic isopoint illustrate the surprising connections among our family trees -- Read more on ScientificAmerican.com
Fluttering Feathers Could Spawn New Species
Fork-tailed flycatchers make a fluttering sound with their wings—but separate subspecies have different “dialects” of fluttering. Christopher Intagliata reports. -- Read more on ScientificAmerican.com
These Small Mammals Snort to a Different Tune
Hyraxes, which live in Africa and the Middle East, punctuate their songs with snorts. And the snorts appear to reflect the animals’ emotional state. Jason G. Goldman reports. -- Read more on ScientificAmerican.com
The Matador in Your Fish Tank
The humble guppy has a surprising strategy for predators -- Read more on ScientificAmerican.com
High-Elevation Hummingbirds Evolved a Temperature Trick
mardi 15 septembre 2020 par Christopher Intagliata — The Sciences, Evolution
Hummingbirds in the Peruvian Andes enter a state of torpor at night to conserve energy, dipping their body temperature to as low as 38 degrees Fahrenheit. Christopher Intagliata reports. -- Read more on ScientificAmerican.com
Evolution Education in the U.S. Is Getting Better
samedi 12 septembre 2020 par Glenn Branch and Ann Reid — The Sciences, Evolution
The percentage of public school bio teachers who present it as the broad consensus view among scientists—without presenting the creationist “alternative”—has increased... -- Read more on ScientificAmerican.com
How Scientists Discovered the Staggering Complexity of Human Evolution
Darwin would be delighted by the story his successors have revealed -- Read more on ScientificAmerican.com
Some Dinosaurs Probably Nested in Arctic
The finding of a baby dinosaur fossil in the Arctic implies that some dinos nested in the region, which was milder than today but not toasty. -- Read more on ScientificAmerican.com
Red Stalagmites Reveal Glimpses of the Past
In a cave in northern Spain, stalagmites rich in organic matter are environmental record keepers -- Read more on ScientificAmerican.com
Buried Skeletons Reveal Tsunami Threat in East Africa
Newly analyzed remains depict the scope of a devastating event -- Read more on ScientificAmerican.com
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