dolphins need to stay with there mothers for about years.
about 25 years
Dolphins can stay with their mothers for a few months or they will stay with them for a few years, depending on how close it is to its mother.
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.
about 2-3 years
Forever
Dolphins move in an up and down motion, they can go up to speeds of 30mph.
about 4 years
Baby dolphins stay with their mother for 3-4 years.
Good question but i dont have a clue
Spotted dolphins can hold there breath under water for 7 to 8 minutes
dolphins can not stay in water long time like most aquatic animals