One glow-in-the-dark animal is the swell shark. Swell sharks are shy shark species that aren't dangerous. Swell sharks are bioflourescent, which is why they glow. But that's not the only trick ...

Head to Amazon right now and you can pick up the Shark Cordless Pro vacuum for $199.99 (was $399.99) in the big spring sale. That's excellent value for this model, which boasts features you'll ...