It's neck
the structures of defense can be their claws and sharp teeth
they stay away from all other animals and they stay healthy.
Giraffes long necks let them find vegetation higher up than other animals can reach.
Stinging cells
many minds
Lionfish have poisonous spines.
Giraffes do not typically use mimicry as a defense mechanism. They rely on their height, speed, and strength to avoid predators rather than blending in with their environment through mimicry.
it's hard shell
Sharp hooves, yes. They use them to dig for roots and tubers when above-ground vegetation dies off. And for self defense.
Yes, giraffes do have knees.
no never eat other Giraffes.
Birds fly to avoid predators. Some have protective coloring.