Manatees Could Leave Florida's Endangered List

What's 10 feet long as an adult, weighs more than 1,000 pounds, lives in rivers and bays and is Florida's state marine mammal? If you answered manatee, then chances are you also know it's an endangered species. That status could soon change, though. Wildlife officials in Florida want to "downlist" the manatee, moving its status from "endangered" to "threatened." Supporters of the move say it's a sign of the Florida manatee's comeback. Environmental groups say it has more to do with the influence of developers. As gentle vegetarians that spend most of their time foraging in rivers and bays for sea grass, manatees have no natural predators. But they do face significant danger u" mostly from power boats and their propellers...