Have you ever wondered which animal would win if it were pitted against one another? Lion vs Polar Bear? Honey Badger vs Silverfish?

Wonder no longer with these professionally researched match-ups.

No animals (or nature) are injured in these match-ups, but simulations do take place. 

Take heed - check the rules below. They can help you make the best choices (like who has homefield advantage), but keep in mind that upsets occur.

Remember - its just a game.

You can't win if you don't play. 

Beyond bragging rights, winners will receive lunch in the library with the library closed to allow you to eat with Miss Savannah and Mrs. Larson.

May the odds be ever in your favor.

For the online bracket you need to do three things by 3/7/2026.

1. Click this link and make a copy.

2. Choose your winners (hint: research here). 

3. SHARE it with Mrs. Larson to be officially entered into the contest.

Always read all the rules, but, if you are impatient, here are three things that might be helpful

1. Four divisions, single elimination tournament

2. Ranked 1 (best) to 16 (worst) in each division

3. HOMEFIELD advantage to the higher ranked combatant during rounds 1, 2, 3 AND then a randomized habitat 4, 5, & 6 that could be either ocean reef, swamp, desert or eucalypt forest

There is more to know to help you make your choices. 

Read below

The 2026 March Mammal Tournament Calendar:

February 20-March 7: Research combatants! Pick your champion!

March 8: Rethink your whole bracket in agonies of second-guesses.

March 9: Wild Card

March 11: Round 1 Money Mammals

March 12: Round 1 Library Legends

March 16: Round 1 Extinction is Forever

March 18: Round 1 That's So Metal

March 19: Round 2 Money Mammals & Library Legends

March 23: Round 2 Extinction is Forever & That's So Metal

March 25: Sweet Sixteen

March 26: Elite Trait

March 30: Final Roar

April 1: Championship!

Tournament events will be live-announced and shared by @mmmletsgo.bsky.social on the bsky.app at 8PM Eastern with results available afterwards at the ASU March Mammal Madness LibGuide.