Paint does not affect how long the turtle can stay underwater..
Salmon stay underwater all the time because salmon is a kind of fish which has gills for breathing while dolphin is a mammal.
They don't stay underwater longer than whales.
A penguin can stay underwater for about 15 minutes and can go to a depth of 1700 feet.
20min
about a minute
Manatees are not land-dwelling, they are water-dwelling mammals therefore their lungs are bigger so they can stay underwater longer.
Adult gray whales can stay underwater for approximately 10 - 15 minutes.
they will be dead
40 minutes
Yes it is, as if you stay underwater for too long, your lungs can't take it, and you may choke/ faint. Only a few mammals (whales, dolphins, porpoises, etc.) can stay underwater for long periods of time.
no, but they can stay underwater for a long time