How about the way they killed their prey in the film?
One question is how did these people kill their enormous prey?
They use this to kill prey, and to defend themselves.
They can often kill their prey in one powerful bite.
They are able to successfully kill prey twice their own size.
They kill their prey immediately, or shortly after the attack.
The mantis is able to kill prey several times larger than itself.
They prefer to kill their prey with a single bite to the back of the neck.
They are generally used to hold or swiftly kill prey, such as in large cats.
They are predators which kill their prey by hitting them at high speed.