The original Hebrew, the word in place of unicorn actually translates as wild oxen. The word unicorn in the NKJV is referring to 'powerful horned creatures'. There were no fantasy creatures on the ark. Look into it! It's very interesting.

How can you believe a single picture made by someone you don't even know? Can you even name every instance that all of these are true?
There are many miracles and curses that take place in Scripture. It's worth looking into before going out and making yourself look foolish.

How I understand it is that Noah's sons had wives. Noah's 'family' meant more than just his wife and kids. And long ago the gene pool was also a lot stronger. Their DNA was free from the genetic mutations and/or damage that has happened over time.

K but the people he drowned were up to some vile sh*t. And fallen angels had mixed with them which made the giant nephilim, who were EATING people.
Noah's family was purely human, no mixed blood.
The world was so fricked that God had to do a system reset.