Serengeti migration: fire and rain affect how zebras, wildebeest and gazelles make the journey

By T. Michael Anderson, Professor of Biology, Wake Forest University

Tanzania’s Serengeti ecosystem is like a time machine. As one of the world’s last remaining fully intact grazing ecosystems it provides a glimpse of what others in Australia, Eurasia and the Americas might have looked like when communities of large grazing mammals roamed freely across these continents.

During the Late Pleistocene, which spanned from 129,000 to 11,700 years ago and is sometimes referred to as the “ice age”, populations of these grazing animals collapsed all over the world.

But…

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