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
Feral rhesus macaque Feral rhesus macaque Feral rhesus macaques are wild troupes of the rhesus macaque released by researchers, zoos, or private owners, that have been able to survive and propagate in several places in the United States. A research colony was established by the Caribbean Primate Research Center of the University of Puerto Rico on the island of Cayo Santiago, off Puerto Rico. There are no predators on the island, and humans are not permitted to land, except as part of the research program. A colony of rhesus macaques was established around Silver Springs in Florida around the spring of 1938. The