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Evolutionary biologists identify non-genetic source of species variability

19:13 EDT 1 Aug 2017 | Physorg.COM

An unspoken frustration for evolutionary biologists over the past 100 years, says Craig Albertson at the University of Massachusetts Amherst, is that genetics can only account for a small percentage of variation in the physical traits of organisms. Now he reports experimental results on how another factor, a "bizarre behavior" that is part of early cichlid fish larvae's developmental environment, influences later variation in their craniofacial bones.

Original Article: Evolutionary biologists identify non-genetic source of species variability

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