Researchers had previously assumed that the mutation would be on the X chromosome because of the skewed sex ratio — it also explains why calico and tortoiseshell cats, which have patches of ...

Getty Images Calico and tortoiseshell cats with mixed colourings are more likely to be female Although couched in science, the study originally started off as a passion project for Professor Sasaki.

Calico and tortoiseshell cats with mixed colourings are more likely to be female Although couched in science, the study originally started off as a passion project for Professor Sasaki.

Chatty cats seem to never run out of things to say. If you’ve ever had to leave them for even a short amount of time, they’ll more than make up for it by filling you in on everything that happened if ...

Just take Melanie, a shelter cat who was recently returned from being "too quiet." Unfortunately, since being back at the animal shelter, Melanie has had a difficult time catching the eye of ...

meeting cats across the neighborhood – from kittens to mature tabbies to a chunky tortoiseshell named Tiger. Well, maybe not the rodents. "Between 30 and 40% of bodegas in New York City probably ...

She's a super friendly girl, ready to find a nice home. - Jade is an adult dilute-tortoiseshell cat. This beautiful girl ended up at PACC because her owners could no longer care for her.

Leslie Greenhough, 70, shared that this tortoiseshell cat celebrated Millie was the one to celebrate the milestone birthday recently. An occasion that the owner marked with a party for the pet.

Leslie Greenhough, 70, believes his tortoiseshell cat, Millie, is currently the oldest living feline. The moggy was first owned by Leslie's late wife, Paula, 55, who first got Millie as a three ...

THE world's oldest cat has just celebrated her 30th birthday, as her owner shares the bizarre secret to her long life. Leslie Greenhough, 70, believes his tortoiseshell moggy, Millie, who was born ...

Emily Anthes is a science reporter who writes Pet Theory, a column about our creature companions. When my husband and I took our cat to the vet early last year, we were hoping to hear that we had ...

This is why most calico and tortoiseshell cats, which have a mix of black and brown fur, are female. In somatic cells, only one of the two X chromosomes is active, and as a result, the black and ...