Manatees are large marine mammals found in shallow coastal waters near Florida, Brazil, and the west coast of Africa. Manatees are occasionally called sea cows, because, like cows, they are slow, peaceful, and graze on plants. Sheri Barton is a Senior Biologist at the Mote Marine Laboratory & Aquarium in Florida, where she studies these fascinating creatures. On this episode of The Show About Science, Sheri joins Nate to talk about her research.