Reply to this with your current favorite weird nature fact!

Today I learned that sharks don't have a true upper jaw/maxilla; instead they have a bar of cartilage that's not fused to the rest of the skull.


@noelle now that we've been able to sequence the DNA, we've discovered that dogs were likely domesticated by humans on *at least* three separate occasions, from three different root species of canids and on three different continents!

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The Vulpine Club

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