Is the mahi-mahi fish dangerous?
Not usually, but they are carnivores. They eat squid, octopus, different kinds of fish (dead, wounded, or alive) and crustaceans. They usually never attack humans.
If you mean the fish Mahi Mahi, it's pronounced "MAH-hee".
Yes. The correct name is "dolphin, or dolphinfish'. Mahi mahi refers to the fish when prepared for food. Found mainly in offshore waters.