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
Adult gray whales can stay underwater for approximately 10 - 15 minutes.
Manatees are not land-dwelling, they are water-dwelling mammals therefore their lungs are bigger so they can stay underwater longer.
they will be dead
It depends on the type of frog how long they can stay underwater. Some can stay underwater for their whole lives while some only stay for about 10 minutes.
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.