Nessie is no monster at all, but a gentle giant no more aggressive than Sea Cows. This species lives in numerous places around the globe, but has only come to attention in small inland lakes. Is this a fresh water creature? Yes, but one that can adapt to brackish waters. It became trapped in Loch Ness during a pole shift, where land routinely heaves up out of the sea and drops in other places below the waves. Thus trapped, the creature proceeded with its normal life, munching vegetation and fish and occasionally popping its head above the surface to sense if it's missing any munchies. Nessie is nearly blind, and relies on a sense of smell, which underwater is sensitive to chemicals in the water, but in the air catches small particles carried in the breeze. Could Nessie come out of the lake and lumber about? Hardly. This creature requires water to breath, having gills along its sides, and thus cannot bring more than its head out of the water.