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%).
Elephants in Thailand
Elephants are herbivores, consuming ripe bananas, leaves, bamboo, tree bark, and other fruits. Eating occupies 18 hours of an elephant's day. They eat 100-200 kilograms of food per day. A cow (female) will eat 5.6 percent of her body weight per day. A bull (male) will eat 4.8 percent. Thus a 3,000 kilogram cow will consume 168 kg per day, a 4,000 kg bull 192 kg per day. As elephants can digest only 40 percent of their daily intake, the result is dung amounting to 50–60 kg daily. As elephants will not eat in unclean surroundings fouled by dung, their instinct is to roam to a new area.