because
Move fast.
it depends on the dolphin whether its weak or strong.
Dolphins move with the help of there fins and the move to get there food.
Dolphins move up and down. Fish move mostly in a straight line.
Dolphins have to chase fish in order to be able to eat.
they move slow
they move a inch a month
I dont know y dont u check google?
Actually, dolphins move in pods or family units.
No, common dolphins do not migrate like other species of dolphins do. However, they will move locations if they are in search of food.
they swim
side to side