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I've gotten lost on this question too. Grasse was either wrong or lying when he said "numerous species, animal as well as plant, have ceased evolving". Nothing ever ceases to evolve. Evolution is constant. As was mentioned earlier, those "slight changes of genotypes within populations, or substitution of an allele with a new one." Continue to acrue until some drastic shift in the environment (such as what will occur from global warming) causes natural selection to root out whatever traits turn out to be harmful to survuval and reproduction tin that environment, and allows for the beneficial traits to flourish. When that happens new body plans arise. An example of this is the quenon monkey in africa. There basic body plan is that of the baboon, but it is in the process of modification to suit the lidfestyle of a tree dwelling primate rather than a plains dwelling primate that its ancestor was.
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