The stunning, patchy fur of tortoiseshell cats reveals a fascinating genetic story. Female cats have two X chromosomes, which means they can carry genes for both black and orange fur colors.

Eye colour: gold, copper, green, hazel, blue, or two different colored eyes ...

Cats rank among the most cherished pets worldwide, with personalities as lively and diverse as their coat patterns.

From black to ginger to tortoiseshell ... So, they sequenced the genome of two salmiak cats and analyzed the genetic data to find their answer. Credit: Salmiak cat “There was a huge chunk ...

According to Dr. Jerold Bell, an adjunct professor of genetics at Tufts University ... Conversely, calico or tortoiseshell cats are usually female – the female’s extra X chromosome allows ...