Take a look at my avatar- my Yoda's casque was bent like this since ever- and people kept coming with tons of funny theories like "his egg was too small so it had to bend like this" or "he is running fast and this aerodynamic casque fits him" or "he was meant to be a shark and Mother Nature made up her mind in the very last second and gave him chameleon's body" etc. etc.

Some chameleons can be pretty healthy and have their casques in a weird shape- tha's make them unique- it would be boring if they all looked the same, right?