Lemurs, too, participate in zoo enrichment programs. A San Francisco Zoo spokeswoman explains, "Sometimes this is a long-term, involved project, and sometimes it is as simple as providing a new, colorful and different-smelling object for a short period of time." Hence, the zoo's lemurs were recently allowed to introduce themselves to pink flamingos. But not just for the photo opportunity: their responses to the stimulus offer clues to their mental health. Apprehension may indicate stress and curiosity shows that the lemurs are comfortable in their environment.
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