to me it looked like he already had something else in his stomach and thought he had enough room for the cow and by the way the guys were talking sounded like he might have eaten a capybara beefore that or a big monitor or something i think they said lizard idk just my guess but pretty cool how our pets work when they are so small its hard to see the working parts sometimes but when u have a retic burm or anaconda u can really see everything working very interesting