depends on the breed of shark your looking at
Alone.
no
Some sharks live in family groups, but most are alone.
They might end up killing each other if they live in groups.
Hammerheads live in huge groups called schools at night they separate and hunt alone.
alone
they live alone and hunt alone, haven't you seen nemo!?
sometimes THEY DO! sometimes THEY DONT!
they live alone.
no they do not live in groups
they live alone
Hammerhead sharks tend to just swim about freely sometimes they are in groups of two or three but otherwise they are alone until it is time for them to find a suitable mate then sometimes they fight to the death in order to get the female. Good luck with your research