Mermaids only train dolphins in fiction.
Well, considering the fact that mermaids are a mythical creature and not real, no. Dolphins do not hang out with mermaids, nor would they if they were real. Dolphins are smart enough that they have better things to do than hang around with a bunch of sea-chicks all day.
Mermaids are mythical creatures that are half-human and half fish. They do not exist in real life, therefore they do not talk. In books and films, however, mermaids usually are able to speak. They also often sing beautifully.
Dolphins are not friendly with sharks, and in fact have saved humans from sharks in many documented cases.
If you train them
they train them
they train them of course
yes they can if you train them
You can't. There are no dolphins in Minecraft.
Yes they can train people in many stuff in the water.
people train them and they have great knowledge
Mermaids are often portrayed with aquatic companions such as fish or dolphins, rather than traditional household pets like dogs or cats. They may be seen swimming alongside these sea creatures in various mythologies and folklore.
Dolphins have been trained many things, but in the wild out in the ocean theres no one out there to train them, so yes dolphins are trained and naturaly nice.