07 NOV 2014 by ideonexus

 Borganism in Nature

he most common example used is the hives of social insects, where all individuals work for the common good with little regard for themselves. Although it has been argued that hives lack collective minds (Nicholls 1982) it should be noted that all such species communicate with chemical signals, and at least in the case of ants chemical trails can be seen as collective cognitive maps distributed in the environment (Chiavlo & Millonas 1995). There may exist degrees of borganisation, and they are...
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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.

28 MAY 2011 by ideonexus

 Perspectives on Gaia

TREVIZE WAS surrounded by the tameness of Gaia. The temperature, as always, was comfortable, and the air moved pleasantly, refreshing but not chilling. Clouds drifted across the sky, interrupting the sunlight now and then, and, no doubt, if the water vapor level per meter of open land surface dropped sufficiently in this place or that, there would be enough rain to restore it. The trees grew in regular spacings, like an orchard, and did so, no doubt, all over the world. The land and sea were...
Folksonomies: gaia gaia hypothesis
Folksonomies: gaia gaia hypothesis
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Selections from "Foundation and Earth" on the fictional world Gaia, which is a more concrete example of Lovelock's almost metaphorical description of Earth as a living being.