While you've likely heard of common cat coat types such as tabby and calico, you may not have heard of the torbie. Here's ...

The mice are Agouti Viable Yellow, naturally occurring mutants, which, though genetically identical, have coats that vary in color—a phenomenon that researchers have long studied as an example of ...

The remaining male pup developed into a fertile adult male with the same agouti coat colour as the B6C3F1 tail-tip cell donor. As oocytes of B6D2F1 mice do not carry the agouti mutation ...