Dolphins have high social behaviour. Having related with this itelligent and socialized animal, Nikki had more opportunities to speak.
I think dolphins have a kind of incomprehensible language for us and they have been able to help Nikki, maybe.
I know some stories about the therapeutic effects of horses and dogs on old people and problematic childs.
Nikki's mother raised 10500 pounds because of her son story.
I'd probably raise this amount of money if I work as a TV preacher in USA.