there are all kinds of sharks, the blue shark ,the great white, bull shark,the megalong,and the fierce preditor that roamed back then the megaldon it was number1 back then but is exint now by:autumn ;)
Of course not... Some sharks, as the lemon shark, can be quite docile. Others, as the Great white, are known to not survive in captivity. (good thing for them, otherwise we would probably be able to...