The term 'stereotypy' is a part of ethology, referring to the phenomenon where a specific animal repeats a specific behavior.

He has a habit of chewing loudly, so he often makes noise while eating.

He is doing a special exercise to strengthen his sternohyoid muscle.

He is a character who decides his own fate.

The exam period is very busy.

He was behaving as if he was crazy.

When will this pain end?

He felt cognitive dissonance between his actions and beliefs.

He is a world-renowned ichthyologist.

He found forensic evidence.