Fur has had a rough few years ... Karakul lambs—think about that—with its never-say-excess iridescent fox color? And model’s bare legs to prove the final obscenity—it’s not even about ...

A prime example of X inactivation is in the coat-color patterning of tortoiseshell or calico cats (Figure 1). In cats, the fur pigmentation gene is X-linked, and depending on which copy of the X ...