Seeing eye dogs pee and poo on command so that their owners can clean up after them. (The command is usually "Get busy!" and pups will pace back and forth until they do their business.) Male dogs are also trained to do their business without lifting their leg.
Cats' eyes shine in the dark because of the tapetum, a reflective layer in the eye, which acts like a mirror.
Seeing eye dogs pee and poo on command so that their owners can clean up after them. (The command is usually "Get busy!" and pups will pace back and forth until they do their business.) Male dogs are also trained to do their business without lifting their leg.