3 ms·

You have a point on the shark fins, but Elephant tusks for sure grow back!

• kelipso 3y ago
  Elephant tusks are teeth, they don't grow back. Rhino horns on the other hand are hair, so they grow back.
  • OJFord 3y ago
    So are 'milk teeth' hair, and adult teeth teeth? More seriously - that's a funny evolutionary result isn't it, (exactly) two sets of teeth in life?
    • undersuit 3y ago
      You're born with both sets of teeth, no hair teeth here, usually unerupted. https://en.wikipedia.org/wiki/Human_tooth_development https://en.wikipedia.org/wiki/Human_tooth_development
      • shiroiuma 3y ago
        Yeah, if you've never seen one, take a look at a child's skull: it's freaky-looking. Most people have no idea because we don't normally see these, only adult ones.