Instance of female reproductive failure due to shortage of males found in squirrels

Monday, October 5, 2015 - 08:00 in Paleontology & Archaeology

(Phys.org)—A pair of researchers with the Russian Academy of Sciences has found an instance of female reproductive failure that was due to a shortage of males—and because of that, a large percentage of yellow ground squirrels living near the Russian village of Dyakovka did not to get pregnant each year. In their paper published in the journal Science Advances, Nina Vasilieva and Andrey Tchabovsky describe their four year study of the little rodents and why their results suggest that traditional theories regarding females as the major factor in reproductive failure in a species, may have to be altered.

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