You can't. There are no dolphins in Minecraft.
/give <name> 261 1
I play Minecraft, and other popular games. I help give out games. What should I name it?
It is give (your name) 92.
It takes 12 months for a dolphin to give birth to another dolphin (calf).
Kristopher Dolphin's birth name is Kristopher Todd Dolphin.
Dolphin...
Jason Dolphin's birth name is Jason Lee Dolphin-King.
The scientific name for dolphins is Delphinidae. This is the family name that includes various species of dolphins found in the ocean.
Delphinidae Delphis is the scientific name for a dolphin, but the name varies for each type of dolphin. Hope I helped! =^_^=
Dolphin = Nai'a
Usage: /give [player name] [item] [amount] Example: /give steve 127 64