When flowers died out in Arctic, so did mammoths

Genetic analysis finds vegetation change around same time as megafauna extinction

By Tina Hesman Saey, 18:01 PM February 6, 2014

For want of mums woolly mammoths were lost.

A genetic analysis of ancient permafrost suggests that after the last Ice Age the Arctic shifted from a landscape dominated by nutritious flowering plants known as forbs to one dominated by hard-to-digest grasses and woody plants. Evolutionary geneticist Eske Willerslev of the University of Copenhagen and his colleagues report the finding in the Feb. 6 Nature. That shift may have helped drive the extinction of large herbivores such as woolly mammoths...

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