14 DEC 2017 by ideonexus

 The 800th Lifetime

It has been observed that if the last 50,000 years of man's existence were divided into lifetimes of approximately 62 years each, there have been 800 such lifetimes. Of the 800, fully 650 were spent in caves. Only during the last seventy lifetimes has it become possible to communicate effectively from one lifetime to another- as writing made it possible to do. Only during the last six lifetimes did masses of men ever see a printed word. Only during the last four has it been possible to measu...
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12 DEC 2017 by ideonexus

 The Power of Fire

A signi
Folksonomies: history evolution tool use
Folksonomies: history evolution tool use
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12 DEC 2017 by ideonexus

 The Disruptive Nature of Homo sapien's Rapid Rise to Apex...

Genus Homo’s position in the food chain was, until quite recently, solidly in the middle. For millions of years, humans hunted smaller creatures and gathered what they could, all the while being hunted by larger predators. It was only 400,000 years ago that several species of man began to hunt large game on a regular basis, and only in the last 100,000 years – with the rise of Homo sapiens – that man jumped to the top of the food chain. That spectacular leap from the middle to the top ...
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22 SEP 2017 by ideonexus

 Exchange is to cultural evolution as sex is to biological...

If culture consisted simply of learning habits from others, it would soon stagnate. For culture to turn cumulative, ideas needed to meet and mate. The ‘cross-fertilisation of ideas’ is a cliché, but one with unintentional fecundity. ‘To create is to recombine’ said the molecular biologist François Jacob. Imagine if the man who invented the railway and the man who invented the locomotive could never meet or speak to each other, even through third parties. Paper and the printing press...
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18 JAN 2017 by ideonexus

 Falacy of Seeking Too Much Purpose in Evolutionary Adapta...

Darwin’s concept of evolution is centered on natural selection, or survival of the fittest [1]. Although Darwin did realize that organisms possess structures and even entire organs that might not have an extant function, as is the case of rudiments [2], on the whole, selectionist thinking has heavily dominated the biological literature ever since. In its extreme but not uncommon form, the selectionist, or adaptationist, paradigm perceives every trait as an adaptation. Under this view of bio...
Folksonomies: evolution meaning
Folksonomies: evolution meaning
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24 DEC 2016 by ideonexus

 Natural Selection Resembles Bayesian Inference

The analogy is mathematically precise, and fascinating. In rough terms, it says that the process of natural selection resembles the process of Bayesian inference. A population of organisms can be thought of as having various 'hypotheses' about how to survive—each hypothesis corresponding to a different allele. (Roughly, an allele is one of several alternative versions of a gene.) In each successive generation, the process of natural selection modifies the proportion of organisms having each...
Folksonomies: evolution biology bayesian
Folksonomies: evolution biology bayesian
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15 JUN 2016 by ideonexus

 The Noosphere

Under the impact of this passage from simple to squared numbers, we all become aware that the entrance is open for the hominised consciousness into a new inner world: the world of the Universe as thought. But do we sufficiently notice that simultaneously, in the realm of the measurable and tangible, another form of ' generalisation '—also as the result of reflexion — becomes possible and outlines itself: no longer simply for our knowledge, the systematised perception of total time and tot...
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15 JUN 2016 by ideonexus

 The Singularity of the Human Species

The singularity of the human species, 1 the study and defence of which form the plan of this work, stands out principally in the actual characteristics of what we shall call in these pages the Noosphere (or thinking envelope) of the earth. But just because, forming a true singularity (and not a simple irregularity) in evolutionary matter, humanity is born not by an accident but from the prolonged play of the forces of cosmogenesis, its roots must theoretically be recognisable (as in fact they...
Folksonomies: evolution science culture
Folksonomies: evolution science culture
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12 NOV 2015 by ideonexus

 Humans as Self-Domesticating Animals

at the end of the Pleistocene, certain human groups and their animal associates began progressively to show parallel reductions in size and stature, cranial gracilization, changes in post-cranial robusticity, shortening of the face and jaws, tooth crowding and malocclusion, and tooth-size reduction and simplification. There has been no recent attempt to explain the parallelism, although numerous explanations exist for the changes as they affect one or other of the parties. Some of the explana...
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Restrictive environments, artificially constructed give us many of the traits shared with the animals we domesticate.

12 NOV 2015 by ideonexus

 Attributes of Domesticated Animals

The study of domesticated animals since Darwin’s influential work (1868) has culminated in the formation of a set of changes that are claimed to distinguish domestic populations from wild species (for recent outlines of these see Price 1984, 1999; Hemmer 1990; Tchernov and Horwitz 1991; Hall 1993; Teichert 1993; Smith 1995; Zohary, Tchernov, and Horwitz 1998; Clutton-Brock 1999; Trut 1999). Although not uniformly present in all domesticated species, those affecting the skeleton may include ...
Folksonomies: evolution domestication
Folksonomies: evolution domestication
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