We do, actually!. Recent research proved there are melanosomes in some fossils/imprints, which were previously thought to be bacteria. This gives us a fairly good idea of the colouring of certain species. Check out this sinosauropteryx:
I highly recommend reading the book Dinosaurs: New Visions of a Lost World. It’s fun to read, has amazing illustrations and was written by one of the people who discovered this.
That is so cool!
That guy looks fren shaped.
You want fren shaped? Check out this cutie!
This is what I imagine an owlbear looked like
Wait
Is that fur?
Composition? I tried googling it. Found an article which says that while hair is made of keratin, feathers are also made of keratin, but the keratin is different.
¯\_(ツ)_¯
Maybe someone who knows what they are talking about will chime in. I am not that person.
