Kaimistro

The Kaimistro ("rhinok" in English) is a large, rhino-like herbivore. They feed on grasses and woody foliage, and are in turn prey to large carnivores. Possessing extremely complicated body chemistry, and evidence exists that their chirality can be very easily swapped between generations. Their intestinal flora is designed to operate in conjunction with Forerunner environmental nanomachines to serve as bioreactors for various useful compounds. On some installations, local sentinel retinue monitor and shepherd rhinok herds as they traverse their migratory patterns, regardless of unexpected environmental changes.

Production notes
Kaimistro were modeled for Halo Infinite's announcement trailer at E3 2018. During the trailer's production, they were internally referred to as "space rhinos" by members of 343 Industries. They were cut from the final game.