March Mammal Madness 2025 Website. March mammal madness (mmm) is an annual tournament all about celebrating the diversity of life on earth using simulated combats run by biologists and scientists. On this holiest of holy mammal holidays, groundhog’s day, this woodchuck declares 2.5 more weeks until the bracket drops (2/20) and 5 more weeks until the 13th annual march.

Discover the special skills and adaptations that mammals use in order. This day is a celebration of our furry friends in the fields and forests.