I don't care how nice that hand soap smells, you should never walk out of the restroom sniffing your fingers!  (Stocky Hawkfish)

 This interesting critter is a Bluespine Unicornfish. Those spines are like scalpels and the vivid color draws attention to them to let other fish know that he's "packing"  some serious weapons!

 This curious little critter is a boxfish. Like birds, the male, shown here, displays bright vibrant colors to attract a female who, by comparison, is dull and drab. Never say this to her face!

Although they appear to be anything but streamlined, they actually have an extremely low coefficient of drag and, in fact, were used by Mercedes to design a car called the Bionic.