Comments by "Psiberzerker" (@Psiberzerker) on "Dimetrodon: Our Most Unlikely Ancestor" video.

  1. I don't actually think that much about Dinosaurs. Okay, they were my Gateway animal, but if you ask me about life before them, I'm going straight for Trilobites, because those are the most fascinating, and diverse fossils to me.
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  2. It need not serve a purpose, or only one. Another thing a feature like that sail can do is distract Predators. Like the bushy tail on a Squirrel, if they chomp into that, it's going to hurt, but it's not going to be a life-threatening injury. Similarly Spinosaurus (Who also had one on it's tail that was no doubt for swimming) This sort of protection is nice against Ambush Predators, especially from above, so Leopards, or for semi-aquatic life that might be jumped from the banks of a river, or something. (As well as temperature regulation, keeping up with the herd, mating displays...)
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