Noted: But in 2010, Abigail Rajala from the University of Wisconsin-Madison noticed that some of her lab monkeys, which had been fitted with head implants as part of an unrelated experiment, were checking themselves out in a mirror. Those same monkeys had previously failed a mark test, but now, they were investigating their weird skull adornments. Later, they even started examining unseen parts of their bodies, like their genitals (as in the video below). “We cannot objectively claim that these animals are self-aware, all the pieces are there to suggest that, in some form, they are,” Rajala and her colleagues wrote.
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