ancient four winged dinosaurs

Genesis 6:12

"And God looked upon the earth, and, behold, it was corrupt; for all flesh had corrupted his way upon the earth."

Book of Enoch 7

1 And they took wives for themselves and everyone chose for himself one each. And they began to go into them and were promiscuous with them. And they taught them charms and spells, and they showed them the cutting of roots and trees.
2 And they became pregnant and bore large giants. And their height was three thousand cubits.
3 These devoured all the toil of men; until men were unable to sustain them.
4 And the giants turned against them in order to devour men.
5 And they began to sin against birds, and against animals, and against reptiles, and against fish, and they devoured one another's flesh, and drank the blood from it.
6 Then the Earth complained about the lawless ones.