they stop smaller creatures from overproducing.
no sharks have good eyesight
No
thats good
Yes
Great!
no it is not good to kill animal
yes because without it, more and more people will want to kill sharks and sharks will eventually go extinct
Great White Sharks are good predators of sea otters because the sharks are quiet and sneaky and the sea otter don't usually pay much attention to what is going on.
http://www.boydski.com/diving/photos/Sharks/SpinyDogfish.htm Here is a good article with pictures
probally not
yes.
Some people think that sharks are violent but they are not.