Ok for one thing dolphins don't have to be in water! dolphins are mammal.So is the killer whale
yes dolphins can stay under water much, much longer than humans can --------------- lol yeah about 3 hours longer
Whatever he feels like, Gosh!
Manatees are not land-dwelling, they are water-dwelling mammals therefore their lungs are bigger so they can stay underwater longer.
they do, because they're mammals
Spotted dolphins can hold there breath under water for 7 to 8 minutes
Forever
If you mean how long can dolphin stay under water, it's about 20 minutes for a common bottlenose dolphin. I am not sure about other species of dolphins.
more predisposed to traveling underwater than other land animals.
a fish stay longer by muslimninja
I think a whale can stay under water for a longer period of time
dolphins can not stay in water long time like most aquatic animals
Like every mammal, dolphins need to sleep. Since they have a breathing spout for water when dolphins sleep it can be dangerous because the can get to much water in them so a lot of times when dolphins are sleeping youll see them come up a lot every now and then. Also its dangerous for whale to sleep too but not as dangerous as dolphins because whales can stay underwater much longer than dolphins. Also if you like dolphins and want to go dolphin sighting go on saltfisher.com! Hope we can help! this information was researched from dolphinreef.co.il