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> "After all, all current dinosaurs have feathers" that's selection bias. only the avian 'dinosaurs' survived, but calling them dinosaurs would be like calling
by autokad 5y ago
> "After all, all current dinosaurs have feathers"
that's selection bias. only the avian 'dinosaurs' survived, but calling them dinosaurs would be like calling humans rodents. It's not like birds existed back then.
There seems to be a rush to try and put feathers on everything. We are finding some amazing specimens that are giving us amazing detail, such as the ankylosaur found in Canada. Yup, covered in scales and hard armor.
Now we got this T-rex crazed idea to put feathers all over them. It sort of reminds me of the 1990s who tried to put t-rex as scavengers / non predators because of 1 solitary data point. the data strongly suggests they were scaled (we found skin impressions of t-rex, they had scales). So now they are trying to say 'oh well maybe they had feathers elsewhere, or were covered in feathers when young'. sheesh.
> "Unfortunately, unlike bones, feathers do not fossilize really well"
if a leaf can be fossilized, I imagine so can a feather.
- LinAGKar 5y ago>only the avian 'dinosaurs' survived, but calling them dinosaurs would be like calling humans rodents. No, humans did not evolve from rodents. It's more like calling humans primates. >It's not like birds existed back then. Back when? There were birds before the other dinosaurs went extinct, so concurrently with T-Rex.
- autokad 5y ago> "No, humans did not evolve from rodents. It's more like calling humans primates." Its my understanding humans evolved from a rodent like creature that existed during the time of the dinosaurs. primates did not exist then. also, humans did not evolve from primates. humans are primates.
- LinAGKar 5y ago>Its my understanding humans evolved from a rodent like creature that existed during the time of the dinosaurs. primates did not exist then. Our ancestors might at some point have been rodent-like, in the sense that they looked somewhat like rodents (or rather, some rodents still look like them, as the rodents also evolved from the same ancestor). But they weren't rodents, and they didn't have the incisors that characterize rodents. >also, humans did not evolve from primates. humans are primates Yes, we evolved from primates, and thus still are primates, like how birds still are dinosaurs.
- autokad 5y agobirds are NOT dinosours. they are descended from them. as far as I know, there were no birds during their time.
- abc_lisper 5y agoHmm.. That’s not true. There were birds then. And a lot of dinosaurs that look like birds. https://twitter.com/serpenillus/status/1226553777983016960?s=21 https://twitter.com/serpenillus/status/1226553777983016960?s... Edit: https://en.m.wikipedia.org/wiki/Evolution_of_birds https://en.m.wikipedia.org/wiki/Evolution_of_birds
- LinAGKar 5y agoDinosaurs is a clade, which by definition includes a species and all its descendants. You can't outgrow your ancestry.
- pvaldes 5y ago> humans evolved from a rodent like creature We are more related with some groups of gliding mammals than with rodents.
- NotSwift 5y agoDinosaurs are only one of the many groups of reptiles that have ever existed. It is normal use in biology to classify species in the same group as the group of their ancestor species. So, whether you like it or not, humans are mammals and primates. There really are no sound biological reasons to exclude birds from belonging to the group of dinosaurs.