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Monstrous people from distant lands depicted in a fifteenth-century European woodcut.
Common skin signs are often evidence of an illness or disorder. A pustule is a small, elevated, ...
Common skin signs are often evidence of an illness or disorder. An erosion or ulcer is an eating or ...
Four kinds of evidence supporting the theory that species evolve.
Experimental evidence that signals from dorsal lip cells initiate amphibian gastrulation. A dorsal l
Evidence of past whole-genome duplications