The friendliest water bison you will ever meet.
They are known to have special powers, which you can get by becoming their friend. These powers include fast-travel, special sound effects while jumping, and the ability to contemplate the universe.
Introduced first by Caboose from the popular web-series, Red vs. Blue, in the PSA: Higgs Bozos
Caboose: The higgs bison is the friendliest water bison you will ever meet!
Caboose: WATER BISON POWERS ACTIVATE!