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Re: FEATHERS FOR T-REX
>Isn't the attention given to keeping feathers clean more to do with
flight than anything else?<
No flightless birds preen as well.
>The Sumatran rhinoceros<
Dont think I have heard of those, maybe I have.
>Some people are known to lose hair as they age, too<
So do some primates.
>Sorry to have to belabor this point, but I think it causes problems to
continue referring to these structures as "Feathers".<
Same orgin and structure, they are feathers.
>Hairlike PROTOfeathers" would not require preening (even if such structures
>had begun to split into something more complex).<
Preening has several purposes.
- Keeping feathers moist and flexable.
- Regulation of bacteria and fungas that digest keratin.
- Removing of parasites.
- Rearrange their plumage.
- Reposition feathers that are out of place.
- Preening gestures are also seen in sexual displays and in agressive displays.
- * Making sure that the animal looks presentable to the female for sexual
selection. One doesnt need bad looking plumage,(feathers), that would make it
look unhealthy and a poor choice.