Because they use jet propulsion from their nostrils.
I think that dolphins are probably faster than blue whales because dolphins are smaller than whales. Blue whales are MASSIVE and HUGE and they take a really slow time to get from one place to another. Dolphins are much smaller than blue whales, therefore, they're probably faster.
to catch prey
There are some species of sharks that can swim faster than dolphins (some sharks eat dolphins) but there are on the other fin, species of shark that dolphins are faster than. Mako sharks for instance, do swim at bursts of speed of 50 miles per hour making makos the fastest animals in the ocean. On average speed wise, between dolphins and sharks 50/50. Hope this answers the question.
No scientific research actually shows that dolphins are faster then sharks for one reason. They can swim about 24 miles an hour next to a boat for ten to thirty minutes which a shark could only swim for a short amount of time to catch it's food. It's like a speed boost. So dolphins are faster then sharks!
Orcas are faster than dolphins in the water.
Sharks can swim faster than several ocean animals, including smaller fish like sardines and mackerel, which they often prey upon. Additionally, many species of squid and some smaller cephalopods are generally slower than sharks. While larger marine animals like dolphins and some species of tuna can reach high speeds, many sharks, such as the great white or shortfin mako, can outpace these creatures in short bursts.
faster
Yes. I don't know of a human that can swim faster than a boat. You should know this.
yes
yes faster than you
yes they can.
No - no animal can currently exceed the speed of sound in water. The speed of sound in water is 1,484 m/s (3320 mph). Dolphins and porpoises can swim from 19-54 mph (8-24 m/s). Not even the fastest underwater man-made projectiles can sustain the speed of sound in water for more than a fraction of a second due to the effects of friction. The closest you can get is underwater explosives that create an underwater shock wave and can move some of their exploding mass at supersonic speed for a fraction of a second.