 Call and Tomasello (2008) highlight this fact when revisiting Premack and Woodruff’s big question 30 years later. Concluding their review of the field, these authors tell us that while the evidence suggests that, in many respects, chimpanzees do have some grip on other minds in many other respects, it also tells us that they do not. Comparing the test results for apes with those of human children has all but secured the conviction that if apes do have any FP abilities then they are not of the same form or in the same degree as that of humans.