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bison antiquus, sometimes called the “ancient bison”, was the most common large herbivore of the north american continent for over ten thousand years, and is a direct ancestor of the living american bison. however, even ten thousand years ago, they still had a bunghole. yes, ancient bison pooped. their poop is an important source of nitrogen, phosphorous, calcium, and magnesium for plants and animals. without it, natural prairies would stop flourishing and become NONEXISTENT. fun fact: it dries and becomes a rock in 7 days!
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