It's something most people do not think about when they visit the Phoenix Zoo, just how much work it takes to run the place. You have to feed the animals, care for them when they get sick, and keep their enclosures clean. And then there's also the issue of keeping the zoo's population under control.
Believe it or not, zoo animals take birth control like many humans do.
Animals fall in love and with that comes responsibility.
Jessie Miller is the hoofstock keeper; she makes it her business to know the giraffes most intimate business.
"The only way we know if they are lightly cycling is by our boy, he'll kind of like be more interested in them," said Jessie Miller.
Whether it's a few months or year round, the animals at the zoo get birth control. Dr. Gary West says birth control is mandatory, zoo law if you will for a number of reasons.
"We as part of the association of zoos and aquariums, we work collaboratively with zoos across the United States. Part of that is working with the population management center, which are scientific advisors on who should breed, and maybe who would breed this year, maybe not next year, and have offspring," said Dr. Gary West.
The Phoenix Zoo has its own pharmacy where birth control prescriptions of various methods are filled.