He keeps crouched by the rock pool, waiting inquisitively on her, and then humming as she explains. A very big cat with a mane... it has him looking off, upward--was there anything like that he knew? Even as a fiend, even if it weren't an animal...

Before he nods, a small 'oh!' escaping once he makes a connection.

"I have a friend like that! Back in Spira!" He grins. "Kimahri. He's a ronso. They're a race- he's blue, with a horn... quiet, but a great pal. Kinda got a face like a cat too. A big cat on two feet."

Tidus waves up a hand as high as he can get it, which isn't that high up where he's crouched. "Taller than me!"