The goal of laser eye surgery is to change the shape the cornea so it does a better job of focusing images onto the retina for sharper vision. LASIK and PRK are two types of laser vision correction.
2. Bottlenose Dolphins. The cetacean family, consisting of dolphins and whales are considered the smartest animals inhabiting the ocean. The Bottlenose Dolphin lives in warm waters throughout the world and is the smartest species of dolphin. It has an extremely large brain and its cerebral cortex and frontal lobe are 40% bigger then a human.
Dolphins are, of course, mammals, not fish, but theyâre probably the fastest things in the sea. Certain species of shark are among the fastest fish in the sea. Like tuna, they can purportedly achieve bursts of 50 mph or so. (Some sites say bluefins can hit 80 mph for short bursts.) Dolphins are known to attack sharks by circling underneath to ram them in the belly.