BrainStuff
Whether the topic is popcorn or particle physics, you can count on BrainStuff to explore -- and explain -- the everyday science in the world around us.
November 26, 2019 • 4 min
Spoiler alert: Yep, all placental mammals have belly buttons, but dogs' and cats' look a little different than ours. Learn how belly buttons work in this episode of BrainStuff.
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