Timeline for How could can humans evolve to have reptilian attributes?

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May 27, 2018 at 5:40	comment	added	Dan Clarke		@Palarran, our large butt cheeks already act as a tail, adding another tail, especially a thick lizard like one would be a waste of resources. More importantly the last time a human ancestor had a tail was about 20 million years ago, when tailless great apes split off from monkeys. Those tails were long and thin, mostly for grasping and balancing in trees, very different from most lizard tails. I just can't find a reason for a lizard like tail to develop in an evolutionary short amount of time.
May 27, 2018 at 5:19	comment	added	Palarran		With regards to the tail, humans managed to develop a way to keep our balance without one. Humans are a blatant exception to the normal rule in that regard; having a tail would actually make it easier for us to maintain our footing, not harder (assuming our bodies were accustomed to a tail, as opposed to one spontaneously appearing by magic). You don't tend to notice it, but humans can't really stand perfectly still: there's always a little movement in the legs and feet, small adjustments to maintain balance, since a bipedal stance is unstable in the absence of a counterweight (like a tail).
May 27, 2018 at 0:44	history	answered	Dan Clarke	CC BY-SA 4.0