it can go up to 3 miles down but have to come back up for air because whales are mammals and need to come up for air. mammals need air and a whale is a mammal. a whale has hairs and is a warm blooded creature.
Sharks have been documented at depths of 4,000 to 6,000 feet below the surface.
Some species of shark live at depths of 1,800 m (6,000 ft) or more.
They can't go any deeper than the bottom. See link.
To the bottom.
they go underwater
yes they can
No but they go up to the surface every 30 minutes.
Adult gray whales can stay underwater for approximately 10 - 15 minutes.
885.853199999 metres
THEY DON'T!
sperm whales can stay underwater for 90 minutes
they use underwater echo sound location!
i think yes
Yes, black whales do have blow holes. They keep them closed when they are underwater.
40 minutes
Orca whales make a odd sort of clicking noise underwater.