Zee tells Splash, Bubbles, Dunk & Ripple that she is nocturnal, which means she stays awake all night and sleeps during the day. Splash and friends are diurnal, which means they sleep all night and ...

Bubbles tries to become nocturnal and stay up all night with Zee, but soon falls asleep. Nocturnal species and Diurnal species -- The reef becomes a very different place at night because all kinds of ...