Observational Studies from Scientists (Part 3)

Source 

Canfield J. Hansen M. V. Becker M. Kline C. 1998. 

Chicken Soup for the Pet Lover's Soul. Deerfield (FL): Health Communications.

I once observed a young elk in Rocky Mountain National Park, Colorado, running across a snow field, jumping in the air and twisting his body while in flight, stopping, catching his breath and doing it again and again. There was plenty of grassy terrain around but he chose the snow field. Buffaloes will also follow one another and playfully run onto and slide across ice, excitedly bellowing “Gwaaa” as they do so (Canfield et al. 1998).

Video: Bison playing in the snow