According to foreign media reports, scientists have recently discovered that lizards have a "third eye", which will use this light-sensitive cell structure as a compass to calibrate the sun. Other animals don't necessarily have a third eye, but their eyes are just as wonderful. The hairy spider has eight eyes, giving it a panoramic view of its surroundings. Male elephants can release aromas from behind their eyes to attract the attention of the opposite sex. Octopuses can only navigate around with their tentacles.