Because it doesn't feel comfortable when you move your head close to their's.
The gestures of nodding your head no and shaking your head yes have evolved as nonverbal cues in many cultures to convey agreement or disagreement. It may have originated from natural head movements of disagreement (shaking head) and agreement (nodding head), which have become standardized across different societies.
A cockatiel has feathers on its head that it can move around.
The muscles that move your eyes are in your head.
Their eyes are on the sides of their head!
we like to move it move it
Yes, a person can gyrate their head. Gyrate means to move quickly, move or cause to move in a great circle or spiral.
Mandible
no sorry i tested it out on my baby iguana they just move there head no sorry i tested it out on my baby iguana they just move there head
yes
There is no move called head smash.
A cat can move its eyeballs but you only notice this when you hold the cats head still.