polar bears
The leopard seal eats penguins.
in club penguin, nothing eats the penguins
A killer whale.
the lepard seal
Penguins eat fish.
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
I'm almost positive that great white sharks eat penguins. They did in March of the Penguins, and I think that is a documentary!