A Shark's Tale

I swim gracefully beneath the waves eyeing my prey above. My cartilage quivers in excitement as I lunge to devour the splashing figure on the surface. The inky cloud of black blood only fuels my lust to taste it's flesh. My rows of pointy sharp teeth are ready to guttle the poor creature. But there is something wrong. It takes me a moment to realize what it is. I can't smell the blood. It's not as if it is not there. I can see it quite clearly obscuring the light of the sun. For some reason though, the aroma of fresh blood, the smell that should whip me into a frenzy is just not there. There has got to be something I can do about this. I see it. I know it is there. I want to smell it. But no matter how hard I try I can't. Why oh why can't I smell the blood?!?