1 mile per hour
As dolphins are mammals they breath air like us, humans.
because they are mammals and need to breath but they can underwater for a long time
Dolphins can hold their breath for a maximum of eight minutes.
Dolphins can't breathe underwater because they are mammals. They go to the surface to breathe and then hold their breath while underwater
Because they cant breath underwater so they use their hole to breath in and out the water
They need them to breathe through. Dolphins, being mammals, have to inhale air and hold their breath underwater.
No. Dolphins spend three quarters of their time underwater. Dolphins can hold their breath for an unbeliveable time. So they have bigger lungs.
Whales, dolphins, and maybe a platypus.
Hippos can't "breath" underwater but they can hold their breath for long periods of time.
How long can you hold your breath?
about a day
dolphins can hold their breath for 30 minutes