Fish VS Mammals

I often hear debate on whether sharks are fish or mammals. Scientists are still out on the porpoise as well. What exactly constitutes a mammal or fish? I never gave it much thought-- until last night.

I was re-reading my latest underwater trade magazine inside my underwater-environmentally friendly Haustibule (Made in Switzerland, so you know it is quality) when my eyes caught a fair bit of action happening through the porthole. I put down my literature (Regrettably, as I lost my place-- though in a few moments what I saw more than compensated for the loss) and peered closer for a better view. What I saw was both ASTONISHING and ASTOUNDING. The undersea world truly is a fascinating lair!

A large porpoise and a rather scrawny shark (I apologize I was unable to look up the name; the encounter was too brief) were at it. The porpoise looped and darted around taking shots at the shark's belly. The shark, though never getting a clean bite off, was nonetheless menacing. What he lacked in agility, he made up for in power. The bout was a theatrical masterpiece, but what really piqued my interest was this: In a more or less equal match, who would be the victor-- mammal or fish? Unfortunately the sea creatures continued their battle elsewhere, so I am still left guessing as to the greater Classification (And, too, the classifications of the gladiators themselves!), but the unknown is no stranger to me. As we scientists say, unknown+time=known, or U+t=K. It all comes down to more research-- something I should be getting back to! Until next time-- Randy