Philippine long-tailed macaque height of 40–50 cm (16–20 in). It is the size of a domestic cat. Male macaques weigh 4–8 kg, but females only attain 3–4 kg. The Philippine long-tailed macaque is found in all major Philippine island groups (Luzon, Visayas, Mindanao). However, though assessed Near Threatened, it is actually in serious retreat or already extinct in much of its original range. For instance, in Olongapo in Zambales Province (western central Luzon), where a patch of old-growth forest remains, the monkeys have found some refuge; however, they are often road killed, accidentally electrocuted by live wires, and sometimes stoned. Philippine long-tailed macaque
Crab-eating macaque durians such as "Durio graveolens" and "D. zibethinus", and are a major seed disperor for the latter species. Although the species is ecologically well-adapted and poses no threat to population stability of prey species in its native range, in areas where the crab-eating macaque is not native, it can pose a substantial threat to biodiversity. Some believe the crab-eating macaque is responsible for the extinction of forest birds by threatening critical breeding areas as well as eating the eggs and chicks of endangered forest birds. The crab-eating macaque can become a synanthrope, living off human resources. They are known to