Wildlife of Sierra Leone
Sierra Leone has 15 identified species of primates that include bushbaby, monkeys and a great ape, the common chimpanzee which is Sierra Leone's largest primate. Chimpanzees are found across the country with the 2010 chimpanzee census estimated a wild population in excess of 5500 more than double the number previously thought to live in the country. This is the second largest population of the endangered subspecies of western chimpanzee, after Guinea,
with the largest density in the Loma area, 2.69 individuals per km2, and the Outamba, with 1.21 individuals per km2.
Metro Richmond Zoo
The zoo has one of the largest collections of primates in the United States, with more than 200 individuals representing 30 species, such as Sulawesi macaque, Diana monkey, orangutan, cottontop tamarin, red-handed tamarin, black-handed spider monkey, lesser spot-nosed monkey, coppery titi, eastern black-and-white colobus, ring-tailed lemur, red ruffed lemur, and black-and-white ruffed lemur . The zoo has a Diana monkey breeding program.