(Photo courtesy of Katie Hinde)

The 2016 bracket for March Mammal Madness includes four divisions.

Today March Madness tipped off with the men’s NCAA basketball tournament, but another tournament is well under way — March Mammal Madness.

It’s a bracket that imagines what would happen if two mammals fought, like the elephant shrew versus the giant anteater. It was organized by Katie Hinde with the Center of Evolution and Medicine at Arizona State University, and a few other researchers.

Catch the action on Twitter, by checking out @2016MMMletsgo.