I've seen them wild in Florida (and a really huge one, as I recall, being being rehabbed in Miami Seaquarium) and they are the most inoffensive things imaginable - seagoing Schmoos, you might say. Their #1 enemy is the powerboat, The Feds say legal protections will not be reduced, although two Florida legislators have introduced legislation to look at the speed zone rules. I hope we keep all the protections in place. With all the bad news about conservation, the manatee, like the bald eagle, provides a reminder of what can be be accomplished.
The manatee (photo credit NOAA)