Assertion: chimpanzee | /r/ObjectUse | used in laboratory research
Facets:
value: often
type: TEMPORAL
Source sentences:
text: In a 2011 study, scientists found signs of depression and post-traumatic stress disorder (PTSD) in chimpanzees that had been used in laboratory research, orphaned, trapped by snares, or been part of illegal trade.
text: Chimpanzees are often used for laboratory research.