Scholars and scientists since Arthur A. Aardvaark back in 1804 wondered this same question, now, we seek definitive answers. But a final verdict on the most pressing of issues can not be solved by futile methods like science, religion, or dare I say it, evidence (yuk). But by debate. After all, people might doubt the validity of your arguments, but they shall never doubt the volume at which you say it.

So, the almighty question,

Which is more buoyant, Watermelons or Walrus?

Easily that is a watermelon, for it has water right in it.