Mandrill
The mandrill is an omnivore. It usually consumes plants, of which it eats over a hundred species. It prefers to eat fruits, but will also eat leaves, lianas, bark, stems, and fibers. It also consumes mushrooms and soil. Carnivorously, mandrills mostly eat invertebrates, particularly ants, beetles, termites, crickets, spiders, snails, and scorpions. It will also eat eggs, and even vertebrates such as birds, tortoises, frogs, porcupines, rats, and shrews. Mandrills likely will eat larger vertebrates when they have the opportunity, such as juvenile bay duikers and other small antelope. Large prey are likely killed with a bite to the nape with the mandrill's long canines. One study found the mandrill's diet was composed of fruit (50.7%), seeds (26.0%), leaves (8.2%), pith (6.8%), flowers (2.7%), and animal foods (4.1%), with other foods making up the remaining (1.4%).
Antelope squirrel
Antelope squirrels are commonly found in dry, shrubby areas of the southern United States into Mexico. These areas are sandy with rocky areas that provide soil that can be burrowed into for shelter and to escape the heat of the day. The temperatures in these regions can exceed during the day and require special adaptations by the ground squirrels to survive. During the night, temperatures in these desert and dry areas may dip below freezing which again requires adaptations to survive. There is very limited free-standing water supply. These regions can experience long bouts of drought. "A. harrisii" does not require surface water within its range but will drink on occasion from basins and bird-baths.