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Croak to croon: City frogs sing more alluring love songs
Those fancy urban love songs are three times more likely to attract the ladies, as scientists learned by playing back recordings of both city and forest frog calls to an audience of female frogs in a laboratory. Thirty of 40 female frogs hopped over to the speaker playing the urban frog calls, the researchers report in the journal Nature Ecology & Evolution.
frogs  cities  science  ecology  domestication 
1 hour ago by yorksranter
Adam J Calhoun on Twitter: "yeah I do think a lot more behavior is subcortical than grad students is canonically taught cortex = refinement/subtle variations, complex pattern recognition that have little effect in macro sense but big effect in fitness sen
In rodents, most movement signals come from midbrain through the rubrospinal tract. In primates, especially humans, that functionality has been shifted to motor cortex. This is one area where rodents completely fail as a model system.
neurology  cortex  science  cats  primates  cat_lizard 
1 hour ago by yorksranter
Why Did Humans Lose Their Fur?
Evolutionary theorists have put forth numerous hypotheses for why humans became the naked mole rats of the primate world. Did we adapt to semi-aquatic environments? Does bare skin help us sweat to keep cool while hunting during the heat of the day? Did we lose our fur to read each other's emotional responses such as fuming or blushing? Scientists aren't exactly sure, but biologists are beginning to understand the physical mechanism that makes humans the naked apes. In particular, a recent study in the journal Cell Reports has begun to depilate the mystery at the molecular and genetic level.
2018  science  human-evolution 
12 hours ago by bignose
Scientific Theories Never Die, Not Unless Scientists Choose To Let Them
"A new scientific truth does not triumph by convincing its opponents and making them see the light, but rather because its opponents eventually die, and a new generation grows up that is familiar with it."
science  philosophy 
14 hours ago by pacpost
Life in Deep Earth Totals 15 to 23 Billion Tonnes of Carbon—Hundreds of Times More than Humans | Deep Carbon Observatory
Barely living "zombie" bacteria and other forms of life constitute an immense amount of carbon deep within Earth's subsurface—245 to 385 times greater than the carbon mass of all humans on the surface, according to scientists nearing the end of a 10-year international collaboration to reveal Earth's innermost secrets.
science  biology  earth 
16 hours ago by flyingcloud

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