Animals

Most are scavengers but some are carnivores, some are herbivores, and still others are filter feeders or parasites. The prey of parasitic crustaceans is usually fish, whales, or other crustaceans.

They are non-migratory, limited to a territory of approximately 4,000 square kilometers.

It is also one of four penguin species that nest there. Outside the breeding season, they live on sea ice, largest population live in the Ross Sea.

Pupa is attached to a silk pad at the rear of a cocoon with a hook-shaped protuberance called cremaster.

It happens that an adult lemon shark will eat its own pups.

It is formed by exactly nine bones, of which the two anterior bones are precisely the transformed clavicles.

It is estimated that sunfish must eat 1% to 3% of their body mass a day. Foraging takes them usually about half a day. After a long presence in cold depths, ocean sunfish need to bask in the sun.

That is why this species is short-lived. An average imago (adult form) lifespan is 7 to 10 days.

They pick up sounds with frequencies from 200 Hz to 100 kHz (five times higher than those heard by humans).