American bison are making a major comeback

Darren Baker // Shutterstock

American bison are making a major comeback

American Bison with calf and herd eating grass

Emma Rubin // Stacker

Yellowstone represents the largest conservation herd of buffalo in the US

Bubble map and bar chart showing largest herds of bison as of 2018

Anh Luu // Shutterstock

Bison are critical to the ecosystems they sprang from and the cultural fabric of Indigenous populations

North Dakota bison herd grazing

Geoffrey Kuchera // Shutterstock

The bison’s decimation is due to a constellation of factors—and repopulation efforts are complex

Badlands American bison bull with sunset behind it

Inger Eriksen // Shutterstock

The transfer program takes a long time—and a lot of testing

A large male bison blocking a road

YegoroV // Shutterstock

The goal: A ‘metapopulation’

A herd of bison moves along a river