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The fur of sea otters can have more than 650,000 strands of hair per square inch. It helps to keep them insulated while swimming in cold waters.

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The Pacific Ocean is the biggest ocean in the world, accounting for 32% of the world's total surface area. That's slightly more than all the land in the world combined.

Male dolphins are called bulls, female dolphins are called cows and baby dolphins are called calves.

Dolphins sleep with only one side of their brain, keeping one eye open and one eye closed. They surface every 20 to 30 minutes to breathe, and they are never totally unconscious while sleeping.

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Baleen whales don't have ears, they hear through the vibrations picked up by the bones in their skull.

The blue whale is the loudest animal on earth. A blue whale call can travel hundreds of miles across the water, and it is louder than an F18 jet fighter.

The hair on your head has a lifespan between 2 to 7 years. At the end of it's life, the hair strand will fall out and another will start growing in it's place.

The arctic fox has the best insulating fur of all mammals.

Cloud leopards have spots on their fur that look like clouds.

25 tons of sea weed is needed to produce 15kg of iodine.

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