This is lampshaded by Deimos's statement: "The final tenet is fight dirty. This isn't a duel nor is it a time to be fair. Gouge your opponent's eyes, gang up on one opponent, use groin attacks, whatever it takes it defeat your opponent."
One chapter has an enemy dinosaur bound to a tree and beaten severely, including several kicks to the groin.
Another chapter has Ducky's mother, armed with twin sticks disable another dinosaur by striking his weapon arm with one stick, tripping him, then kicking him in crotch.
The most brutal groin attack in this story involved a dinosaur kneeing his enemy in the groin, ripping out one of his opponent's eyes, tripping his opponent and almost literally ripping his opponent's head off.
They're reptiles. How does that even work?
Research be damned! It's too much of a good story to let facts get in the way.
In the Harry Potter fanfic The Birthday Present, Bellatrix Lestrange tortures Snape with a Cruciatus curse to the groin area, which leaves him impotent.
