[PIF]

Wiki: The steppe bison was over two metres tall and resembled the modern bison species, reaching 900 kg (1984 lbs) in weight. The tips of the horns were a meter apart, the horns themselves being over half a meter long.

Amercican Bison for comparison:
Shoulder height in the species can range from 152 to 186 cm (60 to 73 in). Weight can range from 318 to 907 kg (701 to 2,000 lb)[11] The heaviest wild bull ever recorded weighed 1,270 kg (2,800 lb).

[SunkenCiv]

They must have spent a couple of days making sub rolls big enough for one of those. ;’) Thanks PIF.