The neurobiologist Harry Jerison has made a long study of the trajectory of brain evolution since the advent of life on dry land. ...the origin of ne… - Richard Leakey
" "The neurobiologist Harry Jerison has made a long study of the trajectory of brain evolution since the advent of life on dry land. ...the origin of new faunal groups is usually accompanied by a jump in the relative size of the brain, known as encephalization. ...the first archaic mammals... were equipped with brains four to five times bigger than the average reptilian brain... primates are twice as encephalized as the average mammal. Within primates, the apes... are some twice the average size. And humans are three times as encephalized as the average ape.
About Richard Leakey
Richard Erskine Frere Leakey (19 December 1944 – 2 January 2022) was a Kenyan politician, paleoanthropologist and conservationist.
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Additional quotes by Richard Leakey
The French archeologists Iégor Reznikoff and Michael Dauvois conducted detailed surveys of three decorated caves in the Ariège region of southwest France. ...they moved slowly through the caves, stopping repeatedly to test the resonance of each section... spanning three octaves... those areas with highest resonance were also those most likely to harbor a painting or engraving. ...a fascinating discovery that... Chris Scarre commented at the time, draws "new attention to the likely importance of music and singing in the rituals of our early ancestors."
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The first era of the Upper Paleolithic, the Aurignacian, is notable for several reasons, one of which is the absence of painted caves. ...One of the most evocative pieces from this era, from the Abri Blanchard in southwestern France, is a flute. Music must have been an integral part of Upper Paleolithic life too.