多指（趾）症，美洲驼
Photograph of a newborn llama cria with polydactyly, a common congenital condition with a presumed genetic basis.
Courtesy of Dr. LaRue Johnson.
在这些主题中
Photograph of a newborn llama cria with polydactyly, a common congenital condition with a presumed genetic basis.
Courtesy of Dr. LaRue Johnson.
