Physical demands are in excess of those for sedentary work; must be able to remain on feet for periods of time, stoop, kneel, crouch, crawl, push, pull, climb and balance; Must be able to travel large areas of the Zoo as needed; Must be able to work in an outdoor weather environment in all seasons and weather, including heat/humidity, cold temperatures, and/or wet conditions; Ability to work a flexible schedule to include weekends, holidays, and special events; Ability to be an essential staff member and report to work in all weather conditions; Exposure to zoonotic diseases and risk of animal attack; Exposure to potential environmental hazards such as poison oak/ivy, uneven terrain, insect bites/stings, and Hepatitis B depending on the position; and, Initial tuberculosis (TB) test and physical required. Equipment: Must be able to operate a variety of machines and equipment including computer, telephone, radio, vehicles, skid steer, back hoe, golf cart, hand tools, bone saw, scales; and the proper use of a variety of knives Working Conditions: Must be able to lift and/or carry weights of up to 75 pounds and/or a negligible amount of force frequently or constantly to lift, carry, push, pull or otherwise move objects.