This is a preview. Log in through your library . Abstract Genetic variability was examined in two endemic cichlid fishes from Cuatro Cienegas, Coahuila, Mexico, and in Cichlasoma cyanoguttatum from ...
Covert and overt variation, as exemplified by British mouse populations / R.T. Berry -- The nature and significance of variation in wild populations / Kenneth Mather -- The extent of biochemical ...
Rates of species formation vary widely across the tree of life and contribute to massive disparities in species richness among clades. This variation can emerge from differences in ...
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