"Age of risk" shapes simpler multimodal communication in the juvenile plains zebra (Equus quagga).

Though the combinatorial density of sub-adults was lower than adults, at 0.38, this was only marginally significant (i.e. p > 0.025) after controlling for number of nodes ( p = 0.031, randomized density mean 0.42 ± 0.04, 95% CI [0.42–0.43], randomized range 0.28–0.53).

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