To prevent the contamination of food back in the commissary, York and her staff must stay out of the animal areas, handing off food supplies to technicians outside. For York, that may be the hardest part of her job. She became involved with the park during its infancy, serving as a weekend sitter for the zoo's first animal acquisitions, a couple of Galapagos turtles. Later, she worked as a keeper in the interim zoo, and became fast friends with such early arrivals as a pair of boa constrictors and two ferrets. I know you're not supposed to get attached to them, and they tell that to all the keepers, but you can't help it.
Animals have personalities too.