Regardless of their coat color, all cats are adorable. However, did you know one coat color is the rarest despite not even ...

They need a name as beautiful and unique as their distinct coats. Tortoiseshell cats get their name from the mottled color ...

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 ...