Penguins Niche- Penguins usually live in groups. Their diet includes fish, terill, and squid Habitat- Penguins spend about half their lives on land and the other half in the ocean. They love cold environments. Adaptions: Structural- Penguins usually stay in packs so they can protect each other against any harm that comes their way. Functional- Penguins ingest a lot of salt water when they are looking for food. But a special gland behind their eyes filters out the saltwater from their blood stream. Behavioral- Penguins can camouflage with the sea water ground so its easier to catch their preys