Shells
SciShow Tangents
The Evolution of Mollusks
I apologize to the mollusks for this. If they're always inside of a shell I don't really think of you as an animal. They're just like goop like an animatronic rock at that point. Barnacles I feel the same where I'm like that's not a thing. No way. You just don't like the goops. I want the animal. Hank, make us a hard stance on cellular differentiation. Not good enough. Not enough cell types. Not a cool creature.
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