"Chimps, orangutans, dolphins and elephants have also been shown to pass the test". Okay and we can assume the authors would agree that these animals don't talk and ask questions, but that the animals can watch other animals' behavior and wouldn't be familiar with mirrors. Why do the study authors say those OTHER children fail the test? The authors say it's because "...children in these societies are often discouraged from asking questions (they’re expected to learn by watching). .....[and] lack of familiarity with mirrors."