A time ago I made a similar question which is this and some time after other similar which is this. So I can consider this new question an improvement or continuation of what I wanted to achieve with the previous ones.
First of all, ossicones are structures like "giraffe horns": cartilage ossified structures covered with skin and fur.
I found similarities with this Star Wars' Twi'lek drawing which tries to show the skull anatomy of this species. We can see that they are practically "head tentacles" or a trunk growing from the back of the head. I just thought, what would happen if instead of ossifying the structure the cartilage is kept and muscle grows over?
Then I thought what could happen bringing this farther not just with one or two "tentacles", adding much more "tentacles" to make possible the "muscular hair"
Currently I want to approach from an evolutionary perspective searching for a functional middle step from the ossicones to the "tentacles".
So here is my idea: a little species, probably an arboreal species which previously evolved ossicones as defensive and sexual selection feature. In some moment small muscular coatings are anchored to the bone surface generating a small lobe or bulb surrounding the cartilage; after a few million years the "tentacles" continue to lengthen (or otherwise multiply) since they would be a beneficial feature such as extra limbs, sensors and sex appeal.
However, in this process there is a lack of the functional middle step in which the first muscular outgrowths in the ossicones become true tentacles, because if these outgrowths are not useful, it is most likely that they will be lost on the path of evolution of these species with "tentacle hair".
Finally my principal questions and problems:
- I think I am making excessive use of the sexual selection wild card, so what other way would I justify the evolution of a characteristic like this?
- Do these tentacles really could work something similar to how they do in the Twi'lek image?