Philadelphia Zoo Douc Langur Sleeping
131 views · Published 25 June 2009 · 0:53 · Indexed 20 September 2026
Channel: ZooVisitorMM · 2009 · Pets & Animals
Just like my husband used to do when he fell asleep in his favorite chair, the male douc langur twitches in his sleep, wakes up, scratches, and goes right back to sleep.
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