Crab-eating macaque 27% animal matter, 15% flowers and other plant matter, and 14% food provided by humans. This species exhibits particularly low tolerance for swallowing seeds. Despite their inability to digest seeds, many primates of similar size swallow large seeds, up to , and simply defecate them whole. The crab-eating macaque, though, spits seeds out if they are larger than . This decision to spit seeds is thought to be adaptive; it avoids filling the monkey’s stomach with wasteful bulky seeds that cannot be used for energy. It also can help the plants by distributing seeds to new areas: Crab-eating macaques eat
Yakushima macaque Yakushima macaques is unknown. Yakushima macaque The Yakushima macaque ("Macaca fuscata yakui") is a subspecies of Japanese macaque that is indigenous to Yakushima Island (Kagoshima Prefecture). It is also known as the Yaku macaque. Compared with "M. f. fuscata" which lives from Honshu to Shikoku and Kyushu, Japan, these individuals are smaller, stockier, have black hands and feet, and a thicker gray coat. Adults have darker fur than infants and juveniles. Adult males have a special feature called a “momoware” (split peach) which parts their hair in the center from right to left. Females bear a single offspring between March