Individual identity signatures: roles of negative frequency-dependent selection and cognition in shaping and maintaining individuality and trait diversity.

Abstract excerpt

Recognition is critical for a wide range of biological interactions from the immune system at the cellular level to individual recognition mediating complex animal social structures. Identity signatures are common features of many animal traits and facilitate self/non-self and individual recognition across diverse taxa. Inherently, identity signatures show high levels of intra-population phenotypic diversity....

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