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Human Origins Program at the Smithsonian's Museum of Natural History.
Great Apes & Other Primates
Gorillas
6 western lowland gorillas live at the Great Ape House. Visitors can see them every day. The youngest is Kibibi, born in 2009.
National Zoo Gorillas are the First to Participate in Heart Disease Study
The same device used to detect early warning signs of heart disease in humans will now benefit two male sub-adult gorillas at the Smithsonian’s National Zoo. 
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Beach Party for the Gorillas
Keepers at the Zoo's Great Ape House gave the gorillas some beach-themed enrichment. more
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Think Tank Photo Gallery |
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Watching orangutans:
The Zoo is home to six orangutans, four females and two males. They have access to the Great Ape House and Think Tank, a place to think about thinking. Native to tropical rainforests, orangutans are Asia's largest primates and the world's largest tree-dwelling animals.
Orangutan Facts | 
Meet the Orangutans | 
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Golden Lion Tamarin Cam
Gorilla Cam
Primates at the Zoo
The Zoo is home to many primates. Orangutans and western lowland gorillas can be found at the Great Ape House. Smaller primates, including golden lion tamarins, Geoffroy's marmosets, and howler monkeys, can be found in the Small Mammal House. Look for gibbons at Gibbon Ridge and lemurs at Lemur Island. Find out where primates can be seen at the Zoo.
On mild days, the organgutans can sometimes be seen overhead as they travel along the O Line between the Great Ape House and Think Tank. The time visitors are mostly likely to see these apes on the O Line is between 11 and 11:30 a.m.
About Primates
There are 376 species of primates in the world—from humans and apes to monkeys and prosimians ("premonkeys").
The smallest primate is the pygmy mouse lemur, which can fit in the palm of your hand. The largest—the gorilla—can weigh more than 400 pounds. Most primates live in warm climates, and most depend on forests for their survival. More Primate Facts
