Does it? Dinosaurs existed for hundreds of millions years, that's a lot of time for things to be preserved. Neanderthals for hundreds of thousands of years, that's not nearly as much.
Sure, fur/feathers is less likely to be preserved for 65 million years (+ however far into the mesozioic you go) than 40 thousand years (+ however far back into the history of neanderthals you go), but by how many orders of magnitude? Is it enough to make up for the many orders of magnitude difference in the number of times it could be preserved?
For what it's worth, my dad was an anthropologist and he liked to point out that their women probably had beards.
Who's been looking for neanderthal fur at any scale? It could be hiding in plain sight. AFAIK, geologists and archeologists don't try to run DNA tests on every bit of biological matter they come across. Humans are known tool users and clothing (and fur) wearers. If someone found fur near a hominid and it wasn't on their head, would anyone be jumping to this conclusion?
That we have a little bit of dinosaur skin impressions is down to said animals being around for a long, long time, and over much more territory.
The absence of evidence is certainly not evidence of absence here; there's simply no evidence one way or the other. Excavators are getting much better at recognizing non-skeletal remains, though, so perhaps we'll see something come up in the future.
Gorillas are largely vegetarian, and generally peaceful. Humans are much better example of “violent tribal monsters” than gorillas.
Cf. https://www.washingtonpost.com/archive/opinions/1977/12/25/t...
Give chimps/gorillas/humans enough territory and they're peaceful, make them compete with others of the same species for limited resources and they'll turn violent.
I don't need much more than basic evolutionary theory to support that.
I had friends who were shorts all the time, but almost everybody will wear thick clothing in winter, and walking barefoot in the snow will cause frostbite and/or is extremely painful (yes I did that, just to see what happens. I was young once. It may have been one of the most painful things I ever did). Humans can survive in the cold because we are smart enough to cover up, not because some of us are so hardcore that we break the laws of physics.
Another weird thing, So we have found evidence of the feathers of dinosaurs, but not the fur of something from 40k years ago? that seems rather unlikely. In this case, the absence of evidence for fur is evidence of its absence, much like the absence of worked neanderthal clothing is. A better simpler explanation would be, they had decent subdermal isolation and brown fat. While most people today think humans cant work outside on a typical winter day in northern europe without clothes, they are just wrong. Go to any country with a snowy winter and ask the first person you meet if they have that one friend or acquaintance who goes about in shorts and tshirt during winter, who seems just absurdly resistant to cold in general. They will give you a name. Luck, ample food and cold growing up, and you too could be walking barefoot through the snow with me, feel the refreshing -5 C wind on your chest when snowboarding in a tshirt, and alway be told you everytime you leave somewhere that you arent wearing enough jackets, pants, scarfs, gloves, and hats.
Besides its unnecessary for the story being told. Humans lived next to chimps and gorillas for millenia and they are furry, cannibalistic, violent tribal monsters. Fitting the story of orcs and goblins even better. But even that is unnecessary, people just like making shit up, but people are also terrible at actually doing that. So almost everything looks like a human or animal or combination.