White-handed gibbons live in the forests of southeast Asia and Sumatra. Some threats that face this species are hunting and deforestation. Their ability to adapt to a wide range of conditions makes them resilient to habitat disruption. The IUCN lists white-faced sakis as Least Concern.
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White-faced sakis have very sturdy canine teeth that can easily crack open nuts and seeds. They eat seeds, fruit, insects, and small animals. Known as “flying monkeys,” sakis can leap as far as 30 feet (9 meters) between branches. Sakis are adapted for both wet and dry conditions and are found across a wide altitude range. White-faced sakis are found in the rainforests throughout northeast South America. Sumatran orangutans’ low reproduction rates make it difficult for the species to recover from population decline. Orangutans are hunted for bush meat and infants are trapped and sold into the pet trade. As human development continues to grow on Sumatra, the forests are cleared for lumber, monoculture palm oil plantations, paper concessions, and agricultural development. Since Sumatran orangutans are only found on one small island, they are particularly vulnerable to habitat loss and fragmentation. Sumatran orangutans are listed as Critically Endangered by the IUCN. Orangutans have been observed using sticks to collect honey or insects from trees to eat. They have a broad diet and can eat over 200 different plant species. Sumatran orangutans spend most of their day foraging for food. Predominately arboreal, Sumatran orangutans live in the lower to middle canopy layers of mature, lowland, and tropical rain forests. Sumatran orangutans are found on the island of Sumatra in Indonesia. However, in some areas squirrel monkeys are trapped and sold into the exotic pet trade. They do not face the same threats as other primates since they are too small to be hunted for meat. Squirrel monkeys inhabit a relatively wide range and are adaptable to disruptions to their habitat. Squirrel monkeys are listed as Least Concern by the IUCN. While they use all levels of the forest, squirrel monkeys forage mainly in the lower canopy and understory, where they eat fruit, leaves, and insects.
They are primarily diurnal and are arboreal, so they spend most of their time in the trees. Squirrel monkeys are commonly found in the northern Amazon. In addition to habitat destruction, mongoose lemurs are also hunted for food. Madagascar’s deciduous forests continue to be cleared to create pastureland and charcoal. During the dry season, between May and November, the lemurs are more nocturnal than diurnal, which allows them to conserve energy and moisture.Īccording to the IUCN, mongoose lemurs are Critically Endangered. Mongoose lemurs are cathemeral, so they are active both day and night. They are well-adapted for their dry environment. Mongoose lemurs live in the deciduous forests of Madagascar. Their greatest threat is habitat loss and fragmentation. Chimps in different regions develop different cultures, which results in developing different types of tools and communication.Ĭhimpanzees are listed as Endangered by the IUCN. The apes will use tools for a variety of purposes, including fishing termites out of their mounds, collecting drinking water, and opening nuts. Chimpanzees are particularly known for their use of tools. Primarily arboreal, chimpanzees tend to spend most of their time in the upper canopy.
They face hunting and habitat loss and fragmentation.Ĭhimpanzees are found in the forests of central Africa. Their selective diet makes them susceptible to changes in their environment. As they forage, pollen sticks to the ruff around their faces and is transported from tree to tree.īlack-and-white ruffed lemurs are Critically Endangered. They are the world’s largest pollinators. This fur makes them very well adapted to the chilly rainforest canopy. Black-and-white ruffed lemurs are striking with their thick, fluffy fur. These lemurs are almost exclusively frugivorous, meaning they eat fruit. Read on to learn more about them!īlack-and-white ruffed lemurs live in the lowland to mid-altitude rainforests of eastern Madagascar. The Sacramento Zoo is home to eight different species of primates. According to the International Union for the Conservation of Nature (IUCN), more than a third of all primates are considered Critically Endangered or Threatened. Since then, the day has evolved to include wild primate conservation and habitat protection. The holiday was founded by Animal Defenders International in 2005 with the purpose of ending monkey experimentation for disease research. Sponsorship Opportunities/ Corporate PartnersĮach year on September 1, we celebrate International Primate Day.Employee Conservation Contribution Program.
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