Why do Yemen Chameleons have such high casques?

[PabloTheCham]

Who knows the relevant answer?

We have still not been enlightened unless I missed something?

 

[Lennoncham]

We have still not been enlightened unless I missed something?

Petr said in post #30

The function of casques is primarily in the process of interspecific identification of a potential mating partner thanks to the phenomenon called character displacement. Based on differently shaped casques and other cranial protuberances and skin derivates, the females can identify the right sexual partner of own species and refuse any reproduction attempts of a male belonging to another species.