Penguins live only in the Southern Hemisphere. Penguins are thought to be found only in cold areas, but they also live in warm areas.

Penguins are flightless birds, or avifauna. They used to fly in the past, but it is thought that they evolved and stopped flying. Instead, they became good at swimming & diving.

Sanderia malayensis eat other jellyfish & small fish.

It is sometimes mistaken for a Dall's porpoise, but it is actually a Pacific white-sided dolphin, with a dorsal fin that resembles the blade of a sickle.

The octopus has one brain in the center of its body and a small brain in each of its eight arms. By the way, there are three hearts.