Monday, October 8, 2007

Darwinism

#1 “We see indefinite variability in the endless slight peculiarities which distinguish the individuals of the same species, and which cannot be accounted for by inheritance from either parent or from some more remote ancestor. Even strongly marked differences occasionally appear in the young of the same litter and/or in seedlings from the same seed-capsule.”
#2 “The principle of reversion states that there could arise characteristics in domestic varieties such that that our domestic varieties, if not interbred with other stock to invariably revert in character to their wild aboriginal stock."

Animal Planet happened to be showcasing a program on adaptability: An animal’s endemic hide that concels its presence in an environment is on the contrary divulging it presence. The subject was a particular yellow colored crocodile which was distinct from the cornucopia of black crocodiles in the waterhole. The distinctness in its yellow color could not be traced to its immediate parent and is referred to as indefinite variability. The endemic crocs had a black pachyderm which camouflages its presence in the murky waters of the waterhole. The black hide aids the crocs by cloaking it in the muddy waters allowing it to prey on herbivores that quench their thirst at the waterhole. But since this particular subject crocodile was yellow (#1) it becomes apparent despite the murky waters. The ‘indefinite’ variability is on account of the variability being uncommon in the ambient brood of crocodiles.
Most black crocodiles would paddle up close to the prey but as it nears the prey its eyes and snout are the only visible distinguishing features above the water and when in striking distance it lunges onto the prey. The advantage the black crocs have is that they can sneak up real close to the prey on account of their pachyderm.
The yellow crocodile when following a similar routine in catching its prey is not successful. (#2 – hunting like the rest of the crocs) It has to adapt its hunting skills. It adapts by immersing itself completely into the water and heads to the prey underwater. It lunges itself onto the prey from beneath the water. This was unlike the prevalent hunting behavior, the black crocs lunged from the surface while the yellow croc lunged from beneath the water with no cues from any other crocodile as it is the only one of a yellow color.
Now if we mutatis-mutandis the principles that is if it was reversion that made the croc to revert to a yellow hide (we can’t be sure as there were any other yellow crocs in the brood) then it had to adapt its skill to an indefinite variability from the remaining brood of black crocodiles.
Both these principles were observation of Darwin which he penned in ‘The Origin of Species’, he precludes both principles to a parental linkage. This discussion however does not limit itself to the preclusions that Darwin made so as to broaden the scope of the discussion and bear on the following:
1. It would be interesting to note how we humans bring indefinite variability in reversions or how reversions create indefinite variability.
2. What may be critical to note is a reversion in one trait is not accompanied by a reversion in another which in Darwinism would be to de-evolve rather than evolve.
3. Further to #2, Darwin had expounded on a ‘law of correlation’ commenting that for a change in trait there would be a corresponding change in characteristic too.
4. The above points could imply that human characteristics are correlated and if so, then a change in one should follow with a change in another. The encumbrance to do so could ferret our abilities in turn our very own growth.

Sometimes if we can recognize our reversion we can nurture an indefinite variability.

No comments: