Dolphins have been known to exist for over 11 million years
Yes they do
5in
a bottle nose dolphins height is 15 inches long
A bottlenose dolphin remains pregnant for about 12 months.
The bottlenose dolphin is a marine mammal. They have a long snout that gets wider as it gets closer to the head.
Bottle nosed dolphins are 4 meters long.
6.6-12.8 ft long and 331.5-442 lb
Oh, sure. If they didn't they'd have died out long ago.
Well, my favorite dolphins are the "Bottlenose Dolphin", "Common Dolphin" and "Dusky Dolphin".
That would be your opinion, but bottlenose dolphins are playful and curious and they do try to make friends with people. So, as long as you don't try to hurt one, they will not harm you, although accidents do happen and you should be careful.
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.
Here are some common dolphin types. Bottlenose Dolphins Orcas Long Beaked Common Dolphin Spotted Dolphin