These little beauties are lampreys, aka lamprey fish or if you've ever encountered one, lamprey bastards. But no matter what you call them, they suck. They really, really suck. They're basically swimming penises with teeth that latch onto their prey and don't let go until they've drawn the life out of them. So don't be fooled by their cute smiles. Lampreys are nasty, jawless terrors, fully deserving of their starring role in "Blood Lake: Attack of the Killer Lampreys" this Sunday May 25 at 9PM E/P, only on Animal Planet.