Tumble Presents: But Why?
Tumble Science Podcast for Kids
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Fish Pee - What's the Fastest Fish in the Ocean?
Like porcupines, hedgehogs don't have quills on their belly. They kind of lie flat, so they're less likely to be pokey. A sailfish can swim about 68 miles per hour. Fish pee is actually really nutritious for lots of other animals in the ocean.
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