Yes DNA corruption, the Bible is a Summary.
Genesis 6-1.4
the Bible mentions other books, including Book of Jasher.
Details are in Jasher, Jubilees and Enoch
Jasher
4-18, directly talks about mixing animals together.
https://www.sacred-texts.com/chr/apo/jasher/4.htm
18 And their judges and rulers went to the daughters of men and took their wives by force from their husbands according to their choice, and the sons of men in those days took from the cattle of the earth, the beasts of the field and the fowls of the air, and taught the mixture of animals of one species with the other, in order therewith to provoke the Lord; and God saw the whole earth and it was corrupt, for all flesh had corrupted its ways upon earth, all men and all animals.
They made the dinosaurs anon. That's why GOD wiped them out. They were abominations.