Penguin sweater
From open-encyclopedia.com - the free encyclopedia.
Penguin sweaters are sweaters knitted for penguins who are caught in oil slicks. When an oil spill affects penguins they are dressed in knitted sweaters to stop themselves preening their feathers. This prevents them poisoning themselves by ingesting the oil. The sweaters are removed and discarded as soon as the penguins can be washed.
