Tim Laman's Wildlife Photo Archive

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Anthropologist Cheryl Knott checks orangutan urine samples for signs of menstruation, infection, and weight loss. She is using dipstick tests for humans, which work on orangutans.

Copyright
National Geographic Society
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5000x3318 / 17.3MB
Keywords
Contained in galleries
Nat Geo: Orangutans In The Wild
Anthropologist Cheryl Knott checks orangutan urine samples for signs of menstruation, infection, and weight loss. She is using dipstick tests for humans, which work on orangutans.