Conclusions

 Cottonmouths are very dangerous, but they are nice if you treat them well.

 If you do see a cottonmouth you have to back down and leave it alone.  Most snakes bite when people try to kill them, catch them by hand, or push them with a broom or any other tool. So just leave the snake alone or call a pro.

Their habitat is being cut down, so we need to plant trees and keep rivers, lakes and swamps clean.

Cottonmouths are important because they eat smaller snakes, and sometimes dead animals.