=Yes they do ,if they don't keep swiming they will sink to the bottom and die.=
yes
Roster...probaly...
They might not have to eat all the time but I know that they must be constantly swimming in order to stay alive.
Different species of shark will eat different amounts. The average shark though eats around 2% of its body weight each day.
Basking Shark
You know.... it eats breathes, the usual .
No, megadolon are an extinct species of shark that lived roughly from 28 to 1.5 million years ago.
shark rays move with all the currents of the ocean.
The biggest shark is the megalodon, but it's extinct. Some people say it is still alive, even though it lived when the dinosaurs used to be alive. I hoped this info helped ;) If you mean sharks that are still alive, the largest is the whale shark then the basking shark.
The fastest shark in the ocean is the mako shark. This species of shark is known to reach speeds of 60 miles per hour.
how long does a baby shark have to stay in the mothers stomach.
The largest shark ever to live was megalodon, Upto 67 ft long.