Quote:
Originally posted by xoxoxoBruce
Most everything in nature has a symbiotic relationship, with at least one and usually more, other things. to fullfil that role becomes it's "goal"
Male animals have two modes;
1~ I want to do it.
2~ I'm glad I did it and I want to do it again.
Female animals have two modes, also;
1~ I want to do it.
2~ Get away from me.
I don't think either understand why, but they know what & when.
If "Survival of species" is the be-all/ end-all of nature, how do you explain evolution, that eliminates so many species?
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I'm not sure I follow you here Bruce, but to answer your question...I have posted the definitions of Natural Selection and Evolution from the Harper Collins Biology Dictionary. I think that these terms are being misunderstood and use incorrectly by some in this discussion. I hope this helps
Evolution = an explanation of the way in which present-day organisms have been produced, involving changes taking place in the genetic makeup of populations, which have been passed on to successive generations. According to Darwinism, evolutionary mutations have given rise to changes that, through natural selection, either have survived in better adapted organisms or died out.
Natural Selection = the mechanism proposed by Charles Darwin by which gradual evolutionary changes take place. Organisms that are better adapted to the environment in which they live produce more viable young, increasing their proportion in the population and, therefore, being selected. Such a mechanism depends on the variability of individuals within the population. The variability arises through mutation, the beneficial mutants being preserved by natural selection.
So, basically, if a species is unable to adapt to its everchanging environment it will not produce enough viable offspring and will eventually die off. On the other hand, species who are able to adapt produce more viable offspring thus passing on the vary genes that allowed it to adapt, therefore, ensuring the survival of that "better adapted" species.