Poems and Thoughts    by Frank Maurer

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Tooth Structure Makes a Difference. The basic general concept concerning evolution, Is that changes unfold over long time periods. These are genetic changes which are affected through DNA. We have already discussed the rapid adaptations in lizards. New research is revealing rapid evolution, Especially in the Cichlid group of fish. The Cichlids can rapidly evolve teeth Which are either 'simple' or 'complex'. And more, this occurs quickly with gain or loss of the tooth type. This rapid change allows successful exploitation of new food types. The African Cichlids seem to have retained the genetic program, Enabling them to easily switch, with tooth type, to another niche. The switch between simple and complex (and back) Drives the rapid formation of new species. Thus Cichlids are able to form new species More rapidly than any other vertebrate group. Frank Maurer 2 April 2025 1255 Hours.