I will bereave them of children. Jeremiah 15:7
Trivia: In Jeremiah 8, what did God say he'd do to the wise men who rejected his word?
What the Bible says about Cryptozoology
Fiery flying serpents are mentioned twice in the Bible.
Rejoice not thou, whole Palestina, because the rod of him that smote thee is broken: for out of the serpent's root shall come forth a cockatrice, and his fruit shall be a fiery flying serpent. Isaiah 14:29
The burden of the beasts of the south: into the land of trouble and anguish, from whence come the young and old lion, the viper and fiery flying serpent, they will carry their riches upon the shoulders of young asses, and their treasures upon the bunches of camels, to a people that shall not profit them. Isaiah 30:6