Indeed – assuming they’re related to horses, they’re not artiodactyls like goats and cows with keratin-coated bone horns, and it wouldn’t be a dentin tusk like narwhals and elephants; they’re perissodactyls like rhinos so they’d presumably have keratinous horns that grow back, like hooves and turtle beaks.
Technically it’s not a horn but a tooth that grows upwards through the skull.
However I’m not sure what the unicorn horn is made of.
Keratin.
Indeed – assuming they’re related to horses, they’re not artiodactyls like goats and cows with keratin-coated bone horns, and it wouldn’t be a dentin tusk like narwhals and elephants; they’re perissodactyls like rhinos so they’d presumably have keratinous horns that grow back, like hooves and turtle beaks.
No, you misunderstand. I wasn’t speculating; I just looked up the Wikpedia page on them and the info was right there.
spoiler
The scientific name is R. unicornis. An Indian rhino is literally a unicorn.