Major cheetah projects exist at many zoos. The Columbus, Ohio Zoo has possibly the best record, having produced 25 litters in 10 years. The St. Louis, Missouri Zoo contains a special Cheetah Survival Center. Other projects involve the Phoenix Zoo in Arizona; the San Diego Zoo in California; the Fossil Rim Wildlife Center in Texas; the White Oak Conservation Center in Florida; the National Zoo in Washington, DC; the Fota Wildlife Park in Ireland and the Wassenaar in Holland. North American zoos contain about 250 cheetah. Almost all zoos have animal adoption programs - some have cheetahs.