According to the whistleblowers, the 78 chimpanzees at Project Chimps can access the outdoor habitat for just 10 hours a week. They spend the rest of their waking hours in enclosed concrete rooms that HSUS and Project Chimps describe as “porches” that are “outdoors.”

Multiple animal advocacy groups are calling on the Humane Society of
the United States (HSUS) to replace the current leader of its
chimpanzee sanctuary with an Executive Director who has chimpanzee
experience. The sanctuary, Project Chimps, was thrust into the
national spotlight in May, 2020, when
22 employees and volunteers sent a letter to the Board of Directors
to sound the alarm about poor veterinary care, overcrowding, a lack
of sufficient enrichment and infrequent access to the outdoors.
The death of Alex, a chimpanzee whose symptoms were ignored by
Project Chimps leadership, has created an added sense of urgency
around this demand.
“While Project Chimps has made some cosmetic changes as a result of
increased public scrutiny and primatologist Steve Ross’s blistering
critique of its welfare management programs, the organization’s
leadership continues needlessly compromise the health and wellbeing
of the chimpanzees,” said Crystal Alba, a whistleblower who the
organization sued in 2020....
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