Penguin facts 1211
Penguins have an oil gland that produces a waterproof oil, and penguins rub this all over their bodies to help them reduce the friction of the ocean water whenever they are gliding through it.
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Penguins have an oil gland that produces a waterproof oil, and penguins rub this all over their bodies to help them reduce the friction of the ocean water whenever they are gliding through it.