Roger Fout’s account of chimpanzees once used in pioneering sign language studies, but ultimately abandoned to LEMSIP (from his book Next of Kin): Chimpanzee mothers were bred repeatedly to churn out babies for research, yet never allowed to raise their children past one year.Infant chimpanzees were taken from their mothers and raised by human caregivers to accustom them to being handled for procedures.Adult chimpanzees were given little enrichment.While his reasoning is suspect, he also apparently gave little thought to how this might affect their mental health or sense of well-being. Moor-Jankowski believed that this would limit their germ exposure. Chimpanzees were denied any outdoor access.Even though it was removed regularly from the large plastic sheaths, it still forced chimpanzees to breathe in fetid odors day in and day out. In reality, the cage design caused a permanent foul stench from excrement beneath cages. Moor-Jankowski theorized that allowing feces and urine to fall out of the cages would maintain a healthier environment, rather than hosing down the cages, causing dampness - a contributor to the widespread upper respiratory problems in captive primates.
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