Shrews, Chromosomes and Speciation. Cambridge Studies in Morphology and Molecules: New Paradigms in Evolutionary Biology. Edited by Jeremy B. Searle, P. David Polly, and Jan Zima. Cambridge and New York: Cambridge University Press. $89.99. xiii + 475 p. + 8 pl.; ill.; index. ISBN: 978-1-107-01137-3. 2019.