It actually makes sense, since pigs share quite a few common physical points with humans. Pig's organs and layer structure under the skin are very similar. The heart is so similar that pig valves can be used in human hearts after a four week treatment. The liver and the gall bladder look almost identical, and the digestive system is also extremely similar, both in how it works and how it is structured.

They are not as cute as dogs or monkeys, but I love the idea of space bacon. [Facebook via It's Full of Stars]