WHAT IS A UNICORN?

What is a unicorn?

A unicorn is a fantastic, magical and legendary animal, it`s a horse with a horn in its head.

But... are they real? did they exist?

These questions are the typical ones that we ask to ourself. At least me. We know there are various types of unicorns we find in internet:

The animated ones The real life ones (not sure exists)
(not real)
                   

Or maybe those ones that      Or our teddies (obviusly not real)
we wear for halloween...
(obviusly not real)

                                            

Anyway, nobody knows if they really exist. Some people think they´re only a fantasy or the main character in legends but, other people think they have existed or maybe there is one walking through the forest.
In my opinion, everyday we discover new species why couldn`t a unicorn have existed?