What are penguins friends?

Penguins are Flightless Birds from the Antarctic. There are many different sizes and colours - about 17 different types of penguins:

The emperor penguin, the biggest penguin of all;

The adelie penguin, a small type of penguin with white rings around its eyes;

The rock-hopper penguin, another small penguin but unusual with tufts of yellow feathers on their ears;

and there are many many more.

They eat fish and squid. They swim very fast to catch their prey and sometimes belly-slide on land instead of walking.

Penguins in general do the same things as any living and breathing organism: eat and digest, live, reproduce themselves (as birds do, by laying and hatching eggs), die, etc.