Buizel
The Sea Weasel Pokémon
Type: Water
Official Registration #: 418
Entry: This small, weasel-like pokémon uses the flotation sac around its neck to stay afloat, even in the swiftest of currents. In order to swim against these currents, it twirls its double tails around, which drives its body forward like the propeller of a motor boat. Incidentally, the author is told that this sort of behavior may be reminiscent of a certain fictional mammal that uses its double tails to fly—which, in the author’s humble opinion, is thoroughly ridiculous. Who ever heard of a creature flying by twirling its tails about? That defies at least one law of aerodynamics! At least buizel’s tail propeller is founded in science.
Floatzel
The Sea Weasel Pokémon
Type: Water
Official Registration #: 419
Entry: The evolved form of buizel, by battle experience. Floatzel are known for the floatation sacs around their necks, as well as their habit of swimming close to sea ports. These sacs, originally developed to aid in floatzel’s hunting abilities, enable this weasel-like pokémon to glide at high speeds along the surface of the water, as well as stay afloat, regardless of how much weight it carries. Hence why it makes its home around marinas, actually: the sac allows floatzel to carry off prey and rescue people that have fallen into the water. Of course, it should be worth it to note that it will occasionally do the reverse and carry off people and “rescue” prey, particularly throughout trout fishing season in its native Sinnoh.
The Pokédex According to Bill 