Posted on

Why do some Roof Rats have a white tail tip? What does it mean?

As previously mentioned in this blog, there seems to be a recessive gene that causes Rattus rattus (Roof Rats) to have a white tail tip marking. Here are black (melanistic) and agouti roof rats with and without the marking. Black Roof Rat with white tail tip marking Black Roof Rat with a solid black tail…

Read more