This man is blood testing a bison and tagging. The animal is kept in this apparatus so the person may quickly complete the tests without hurting the animal or himself. It is difficult to image that this specific man weights 3,000 pounds.
hootersbutwithcatsYou can only image what the rest of it looks like as its head alone is the size of a fully developed man. These creatures might easily crush a human, which helps one to appreciate the enormity of bison.
