Mermaids like to comb their long hair. In art, they are often shown with a mirror and a comb. Sometimes they sit on a rock and sing, luring sailors to their destruction. This is why they are often confused with sirens (who also inhabit the sea). Mermaids lure handsome young men to their homes in the deep seas. Mermen, however, are usually wilder and uglier than mermaids and have little interest in humans.