Manatees as you might know are on the endangered list meaning they are less populated and are being killed or dying off fast because of water polution. But there is a hope for the manatees because of the "Save The Manatee Club" (look it up) I am an active member of this foundation. Let me explain... in this well structured foundation manatees who may have been hurt by boat propellers or crab nets are diagnosed and healed and if they are still in condition the are put in captivity until they heal.
Here are some links that explain what is being done to save the manatees.
nothing
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conservation
nothing
they are being kept in wildlife conservation habitats
MAnatees have put in special laws for boats
what beging done to preserve the everglades
Zoos, and other wildlife parks are doing their best.
being a couch potato
The rock art could become part of a park or property of a historian.
we can save it by killing all the harmer's ! it's a real good way