User blog comment:RandomKing57/Zoan DF Appreciation Post/@comment-137.175.139.190-20151108212255

Iruka-Iruka no Mi: This fruit allows the user to become a dolphin. Dolphins can use echolocation to detect for prey, incoming enemies, and friends or allies. Dolphins can use their teeth to hold onto bubbles and use them as weapons, like forming it into a lasso.

Note: This would only be possible if the Devil Fruit main weakness would be different.