Penguins are a good food source for predators. They are nice and plump, and provide lots of energy for the carnivore. Some animals that hunt and eat penguins include sharks, seals, and orcas. Most penguins live in the Antarctic (appart from a few tropical species such as the Magellanic, Humboldt, Blackfoot and Galapagos penguins), so their predators are mostly antarctic animals also.
The leopard seal eats penguins.
in club penguin, nothing eats the penguins
A killer whale.
the lepard seal
Penguins eat fish.
polar bears
it eats it by its mouth
Skuas eat baby Emperor penguins.
squid
galapagos animal penguins
killer whales (orca)
Smaller penguins eats krill and small fishes and, the bigger penguins eat fish. Funny fact: Did you know that penguins eat stones to be stable in the water