is a projective technique consisting of a seriesof pictures. The examinee is requested to create a story about what he or she believes isoccurring in the situations or events depicted by the pictures. The test was originallypublished by Murray and his colleagues at the Harvard Psychological Clinic...
We carried out a field experiment to test whether breeding pied flycatchers can act purely reciprocally when mobbing in response to a predator. We tested this possibility against the hypothesis that the behaviour might be explicable in terms of byproduct mutualism, whereby the activities of an ...