Part 1 of Essay
New York Times April 11, 1996 The manatee population has suffered a devastating blow so far this year. About 221 manatees have been found dead already. Out of those 221, 128 have no obvious cause of death. Marine biologists have been unable to find the cause of these deaths. They suspect that the Red Tide off of the c ....

Part 2 of Essay
.... the "source" of the problem. If the manatees survive there, that tells scientists that the problem was in their habitat. If the still die at their current rate, that would tell the scientists that the manatees have a deadly unknown virus. If it is a virus, the scientists can devise some sort of medicine to defeat this virus. ....