Talk:One Life:A Child/@comment-3555397-20120618163116/@comment-3986064-20120618165603

Jacky is a little sea creature, a rare race that is said to live at the end of the world, barely anyone has ever seen an example of the creature before. They are highly inteligent sea creature, which can actually communicate like human, but not with human language. Jacky is one of these creatures referred as "Sea Demons" and he has eaten a Devil Fruit! The DF allows him to grow to great proportions. Although they are kinda weak, they are said to be respected by the fishes and by the sea.

Also regarding the question onto why Richard and Marcus can understand him, well that's pretty easy. Only great fools are actually able to be so creative and naive as to think they can really understand him. Their lack of doubt into what their interpretation of Jacky's words are, leads them to actually understand him. To put it simply, they're stupid enough to think they understand an animal, this stupidity leads to them to truly understanding.

Think about it like Luffy and Roger with the sea kings.