Because the manatee is a close relative of an elephant, they have large prehensile upper lips that can move independently of each other. Manatees are also one of the few mammals that keep replacing their teeth their entire lives. Another odd anatomy part is that manatees don't really have necks. Also, they have nails! This helps them use their flippers for swimming, crawling, and eating.
WEIRD + interesting info
Manatees actually are really slow animals, really slow. All three species of manatee are considered endangered, and it is illegal to ride them or hug them. There is already an extinct type of manatee, the Steller's Sea Cow.