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Showing posts with the label mammal-like reptiles

Why do reptiles want to be mammals?

That's an odd name for a post, and I'm aware that my amateur status opens me up for all kinds of criticism; I'm a dabbler, not a scientist. The reader could also infer a sort of "mammalian chauvinism", i.e. the concept of evolution that divides nature into "higher" and "lower" forms, with the "lower" forms all striving to become more mammal (read: human )-like. This is the sort of 19th-century thinking that produced the "evolutionary dead-end" fallacy about dinosaurs, arguing that the most successful and long-lived tetrapod family on the face of the earth was simply too dim-witted and sluggish to survive. We now know these creatures to have been intelligent, dynamic, and adaptable in their own right - in fact, they live among us today in bird form. Our mammalian ascendancy, when you get down to it, is down to sheer luck. At the same time, as I survey the record of life, I can't help but notice some odd patterns emergin...