![Changing the Guard: Extinction and Migration in Ice Age America](https://images.squarespace-cdn.com/content/v1/5fbbf5363c8e8724072a6bc2/1664186335929-HY7W0B6AYHV1G5R4FK10/BeringianWolves.jpg)
Changing the Guard: Extinction and Migration in Ice Age America
At the end of the Pleistocene, North America saw the extinction of about 70% of its megafauna guild - a catastrophic event, the cause of which is fiercely debated today. The magnitude of this loss may however be a conservative figure, a suspicion that arises when perusing the list of ‘surviving’ mammalian megafauna, because many also are present in Eurasia.