At first, I thought “well, mammals would have simply evolved sooner”, but then I began to think of the Autism Awareness Blue T Rex Dinosaur April 2017 Gift Baby Shirt implications of modern mammals directly evolving from Permian synapsids instead of taking the slow route. It also raises the question if dinosaurs never rise to rule the earth, do birds never evolve? Do synapsid species evolve to fill the niche of flyers? There are so many possibilities! Mammals directly evolved from them would probably have a poorer smell and better color vision.
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I think because the Autism Awareness Blue T Rex Dinosaur April 2017 Gift Baby Shirt ground-based burrowing mammals had improved smell and reduced vision. When our more recent ancestors took to the trees our sense of smell reduced and our vision improved again. I think primates have a better color vision to help find fruit. But then flowering could evolve as a result of the grazing of mammal-like reptiles instead. We can never know of course. Maneuvering in trees was probably a major driver as well. Probably why humans are so good at telling different shades of green apart. Have you heard of Suminia?
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Flowering plants evolved during the age of the dinosaurs but how is the Autism Awareness Blue T Rex Dinosaur April 2017 Gift Baby Shirt dinosaurs thought to have aided this process? I assumed they co-evolved with insects and didn’t think the dominant macrofauna had much direct impact? I think one theory is flowering plants evolved in response to dinosaur feeding. Basically, by eating the non-flowering, they cleared up space for flowering ones. I just searched apparently this is not the case. Though the clearing probably did help the flowering plants a bit.
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