Why do scienentists call beringia an ice age serengeti?

Scientists refer to Beringia as an "ice age Serengeti" because it was a rich, biodiverse region that supported a wide variety of large mammals during the last Ice Age, similar to the Serengeti's role in Africa today. This land bridge, which connected Asia and North America, provided critical habitats and migration routes for animals like woolly mammoths, saber-toothed cats, and bison. The unique environmental conditions and vegetation of Beringia allowed these species to thrive in a way reminiscent of the diverse ecosystems found in the Serengeti.