Mammoth migrations

New World woolly mammoths once ruled both sides of the pond

The last woolly mammoths in Siberia weren’t Siberian — they were North American, researchers report in the Sept. 9 Current Biology.

BURLY BEAST A new genetic analysis shows that woolly mammoths roamed in several, genetically distinct groups. Of two groups that coexisted in Siberia, one was actually North American in origin.