Philippine long-tailed macaque Philippine long-tailed macaque The Philippine long-tailed macaque ("Macaca fascicularis philippensis") is a subspecies of the crab-eating macaque, known in various Philippine languages as "matching"/"matsing" or the more general term "unggoy" ("monkey"). It is endemic in the Philippine forests and woodlands, but especially in the mangrove forests of western central Philippines— particularly in Palawan, the Visayas, and Mindanao. The names "M. f. philippinensis" or even "M. f. philippinenesis" have also been used, but arise from orthographical error. The Philippine long-tailed macaque has a reddish-brown coat. Its tail has an average length of 50 cm to 60 cm. It can reach a
Rhesus macaque The X chromosome has three times more rearrangements than other chromosomes. The macaque gained 1,358 genes by duplication. Triangulation of human, chimpanzee, and macaque sequences showed expansion of gene families in each species. The "PKFP" gene, important in sugar (fructose) metabolism, is expanded in macaques, possibly because of their high-fruit diet. So are genes for the olfactory receptor, cytochrome P450 (which degrades toxins), and CCL3L1-CCL4 (associated in humans with HIV susceptibility). Immune genes are expanded in macaques, relative to all four great ape species. The macaque genome has 33 major histocompatibility genes, three times those of human. This has clinical