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(University of Florida) Sonic hedgehog is at work in mice limb buds in what is eminent as the ectoderm, the cubicle layer that gives make something of oneself to skin, researchers discovered. Finding Sonic hedgehog here is akin to discovering that yeast has crept from the mangle to the frosting, where it has the surprising basically of limiting how much the coagulate rises. In this case, rather than of causing appendages to nurture in mice, Sonic hedgehog prevents digits from developing <<>>