Welcome to March Mammal Madness with the Northeast Wisconsin Land Trust!

This page is for the 2025 MMM Tournament and bracket pool. NEWLT will be hosting a bracket pool again in 2026, and we will have an updated page for that tournament. However, it will largely be the same, so this page can show you what it's all about.

The Basics

What is March Mammal Madness?

March Mammal Madness is a simulated tournament that takes a group of animals and asks the question "Who Would Win?" It's a way to learn more about the natural world through creative storytelling and fun competition, all run by a team of professional researchers and educators.

What is the bracket pool challenge

March Mammal Madness revolves around a bracket with each of the different animals, similar to a NCAA March Madness bracket. Players can predict the winners of the matchups by filling out a bracket in advance. The Northeast Wisconsin Land Trust is hosting a bracket pool challenge, and we invite community members of all ages to join in by entering a bracket.

Click above to see this year's bracket

How to Participate:

Participating is free and easy:

Sign up to play at the link below
Join our online bracket pool
Fill out your bracket by predicting the winners for each matchup (you can research all the combatants thoroughly, just make random guesses, or any level of effort in between)

Brackets are due by 7:00 PM (CST) on Monday, March 10.
You can work on your bracket until that point, so you are free to start it and come back, make changes to it, etc.

Then, you just follow along as the winners of each matchup are revealed. We'll be sending out updates throughout the tournament. At the end, we'll have prizes for the top scoring brackets!

MMM Sign Up

More Information

MMM Overview

If you'd like an overview of what March Mammal Madness is, check out the video below.

If videos aren't your thing or you'd just like further information (including an explanation for why a marmot puppet is explaining March Mammal Madness), then check out these other resources.

The Bracket Guide

For a more in-depth overview of how the tournament works and the background of March Mammal Madness, check out the 2025 Bracket Guide. This document provides an overview of March Mammal Madness and key information for players who would like to better understand the tournament.

2025 Bracket Guide

The LibGuide

For everything else March Mammal Madness, visit the LibGuide. Here, you can find more information about the tournament, look at past results, get the results as this year's matches are released, and more.

March Mammal Madness LibGuide

Questions or more information

If you have questions, run into any issues, or would like more information, please contact Paul List paull@newlt.org