Dugongs are related to manatees and are similar in appearance and behavior— though the dugong's tail is fluked like a whale's. Both are related to the elephant, although the giant land animal is not at all similar in appearance or behavior. Underwater Behavior Dugongs graze on underwater...
Sirenomelia, also called mermaid syndrome, is a rare congenital deformity in which the legs are fused together, giving the appearance of a mermaid's tail, hence the nickname. What is a famous mermaid? Perhaps the most famous mermaid right now isAriel, the star of Disney's animated version ...