This belongs in the category of “I didn’t know that.” Most calico cats are female. In fact, the chances of a calico cat being born male are less than 0.1 percent, or about 1 in 3,000, according to the Humane Society Silicon Valley.

So when 4-month-old Sherman came through the doors of the Sunnyvale Neighborhood Adoption Center, located inside the Petco, staff and vets alike were astonished.
“It’s like a unicorn,” said HSSV veterinarian Andrea Berger. “I’ve been involved with shelters for 20 years, and I have never seen one.”
Not surprisingly, many people lined up to adopt the male calico for his rarity alone. Hopefully he’s found a good home but for those people disappointed they couldn’t adopt a male calico, there are likely plenty of other cats who need good homes too so any cat is better than nothing at all.