Washoe, a captive chimpanzee who was taught sign language, was expecting a baby, as was her caregiver Kathy. Sadly, Kathy had a miscarriage and was away from work for a few weeks, during which time Washoe lost her baby too. When Kathy returned to work, Washoe, noticing that Kathy was no longer pregnant, signed to Kathy “Where’s baby” and Kathy signed back “Baby died”. Washoe’s response was “Come hug”.