When the emperor penguin snorkels, the friction between the body and the water slows down its speed, allowing it to swim at a speed of only about 1.2 to 2.7 meters per second.

Penguin trivia:A penguin that swims fast!
Penguin trivia:A penguin that swims fast!

However, during a short sprint, the penguin can expel air from the feathers to form small bubbles, increasing the speed to twice or even three times the original!

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