Manta rays are fascinating creatures. We find them cute because they appear to be smiling, and they're very tame. If you've been to an aquatic center, you may have seen a pool of these fish, which will eat from your fingers if you hold a little food for them below the water. Rays that are used to being fed this way may even slap their fins on the side of their tanks, demanding that you feed them! You'd probably need an Olympic swimming pool to house this one, though.
This is the largest manta ray ever recorded. That's not to say there aren't even bigger ones beneath the waves; it's just that this one was unfortunate enough to get caught on a boat's anchor line, and so was dragged out of the water, giving someone the chance to measure it. When they did, they found it measured 20 feet across from fin tip to fin tip and weighed an incredible 500lbs.