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Glenn Nichols, surrounded by his hospice team. The author is in yellow.

Genetic Linkage

Wolf Evolution and "Settled Science"

June 14, 2017

Tags: wolf evolution, climate change

Are the red and eastern wolves separate species, or hybrids with coyotes? And what has that got to do with climate change? Actually a lot, in illustrating what scientific inquiry is and what it isn’t.

COMPARING CANID GENOMES

A report in this week’s Science Advances questions conclusions of a 2016 comparison of genome sequences from 28 canids. The distinction between “species” and “hybrid” is of practical importance, because the Endangered Species Act circa 1973 doesn’t recognize hybrids. But DNA information can refine species designations — or muddy the waters. (more…)

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