"To think of the biblical unicorn as a fantasy animal is to demean God’s Word, which is true in every detail."
Some people claim the Bible is a book of fairy tales because it mentions unicorns. However, the biblical unicorn was a real animal, not an imaginary creature.
The Unicorn is seen as a Symbol of Christ and has been depicted throughout Medieval Times showing a Unicorn on the lap of the Maiden symbolizing Christ returning to the Womb.
Source: https://answersingenesis.or g/extinct-animals/unicorns-in-the-bible/