Are chestnuts a clue to perissodactyl evolution?
I've read some interesting theories, based on comparisons of enzymes,
to suggest that lumping tapirs in with rhinos as ceratomorpha is wrong
and that they are, in fact, more closely related to equines and should
therefore be under hippomorpha. Any views on the subject? Doesn't the
fact that certain tapirs have chestnuts on their legs indicate a
closer relationship with the horse family or do chestnuts also exist
on rhinos' legs in a disguised form? I'm writing a report on tapirs as
an endangered species. This isn't crucial to what I write but if their
classification is under scrutiny, perhaps I should mention this. It
also has implications for the kinds of diseases to which they are
susceptible.
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