by raping them
by attacking.
The main predators of frilled neck lizards are birds of prey, snakes, and larger lizards. These predators are able to catch the frilled neck lizard either on the ground or in the trees where they live. The frilled neck lizard has developed its unique defensive display of extending its frill to try to scare off potential predators.
they bark
they use their quills to scare them
They used them to fight and scare out predators.
they use their quills to scare them
To scare away predators.
by its big huge teeth
There glowing prescence and scary attitude wards some of the predators off
they stay in groups, and try to scare there predators away.
Lizards normally just ether scare an animal (for instance frilled neck lizards spike out there mains which scares many animals) or hide as they can normally camouflage (blend in with things)
yes they were used for food and to scare off unwanted predators