On a more serious note, the Book of Enoch tells of genetic experiments to create not just giants but also monsters and interspecial creatures which we are not able to replicate. These were done by fallen angels. Apparently the monsters were short lived and vicious. The giants on the other hand were quite successful. Og was a king, the last one mentioned in the Bible. Genetic tampering was the reason for the Flood of Noah as human bloodlines were being tampered with to prevent the Messiah.
Makes one wonder if that caused the Flood, will that trigger the Fire (Second Coming)?
More Serious?
Enoch ping