21 JUN 2013 by ideonexus

 Cancer as a Microevolutionary Process

The body of an animal operates as a society or ecosystem whose individual members are cells, reproducing by cell division and organized into collaborative assemblies or tissues. In our earlier discussion of the maintenance of tissues (Chapter 22), our interests were similar to those of the ecologist: cell births, deaths, habitats, territorial limitations, and the maintenance of population sizes. The one ecological topic conspicuously absent was that of natural selection: we said nothing of co...
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Cancer evolves within us, growing by natural selection in rebellion against the environment of our body's ecosystem.

20 JUN 2012 by ideonexus

 The Evolutionary Unit of Measurement

The starting point of Darwin's theory of evolution is precisely the existence of those differences between individual members of a race or species which morphologists for the most part rightly neglect. The first condition necessary, in order that any process of Natural Selection may begin among a race, or species, is the existence of differences among its members; and the first step in an enquiry into the possible effect of a selective process upon any character of a race must be an estimate ...
Folksonomies: species measurement average
Folksonomies: species measurement average
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Is the species, not individuals within the species.

29 MAR 2011 by ideonexus

 Humans Aren't Especially Smart, It's Just that We Swarm

I prefer sociobiologist E. O. Wilson's view of us as unfortunate tribal carnivores that have acquired intelligence. Our evolution is more like that of social insects; the advances in knowledge and understanding that we prize are more a property of the human nests we call civilization than of its individual members. The nest is always more powerful than a collection of individuals. Who dares disturb the hornet's nest? Small bees easily destroy the huge and powerful but solitary Japanese horne...
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Humans are like other social insects. Our power doesn't come from our brains, but our ability to collaborate.