Many people like animals, but taking care of them is hard work. Zookeepers take care of wild animals in zoos and animal parks. They feed the animals, clean their living spaces, and work to keep them healthy. Many keepers go to college for 2 or 4 years. They often study biology, animal science, or some other science. Keepers also need to understand math so that they can measure food properly. Keepers need good writing and speaking skills so that they can take notes and talk to the public. Employment of animal care and service workers is expected to grow much faster than the average for all occupations through 2018. But jobs as zookeepers are expected to grow more slowly than other animal care jobs.