I checked, it seems like if one specimen is shorter than the other in the presence of potential mates, they have been “height mogged”. There are other forms of mogging, but I did not see any critical analysis of how these creatures might avoid passively giving offense to one another.

“mogging” is a relatively recent meme representing a situation where one person next to others has radically better looks in some way or another, supposedly creating a subconscious atmosphere of their superiority. Typical examples are photos of bodybuilders next to regular people.