Sketch of a gorgonopsian head, in side view. (CCA 3.0 / Dmitry Bogdanov via UW) A weird type of benign tumor has been discovered in an unlikely place: the fossilized jaw of a distant ancestor of ...
A weird type of benign tumor has been discovered in an unlikely place: the fossilized jaw of a distant ancestor of present-day mammals that lived 255 million years ago. The tumor, known as a compound ...
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