But Why: A Podcast for Curious Kids cover image

How do popcorn kernels pop?

But Why: A Podcast for Curious Kids

CHAPTER

How Do Rabbits Change Color?

Anadramis is a type of fish that live in saltwater but are born and lay their eggs in fresh water. Some salmon spawn just a few hundred feet up river from the ocean, others may swim hundreds of miles or even a thousand miles for spawning. When they are far out in the ocean, their internal compass helps them navigate back to their natal stream; when they are close, their sense of smell helps guide them in.

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