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Current Ethology

 ISSN 2594-9985

MEDRI, Ísis Meri    MOURAO, Guilherme. Male-male aggression in free-ranging collared peccaries, Pecari tajacu (Artiodactyla, Tayassuidae), from Brazilian Pantanal. []. , 15, 2, pp.24-29. ISSN 2594-9985.

^len^aWe video-recorded the first aggressive interaction between two wild adult male collared peccaries (Pecari tajacu), resulting in the death of the defeated individual. The aggressor repeatedly bit the scrotal area and the hind leg of the attacked individual, which remained lying on the ground, vocalizing and clicking his teeth. Occasionally, the attacked individual raised his head, unsuccessfully attempting to bite the attacker to defend himself. The attacked individual died few minutes later the end of the aggression. The aggression was possibly caused by competition for female in estrus.^lpt^aRegistramos em vídeo o primeiro comportamento agressivo entre dois catetos (Pecari tajacu) machos adultos de vida livre, que resultou na morte do indivíduo derrotado. O agressor mordeu repetidamente a região escrotal e a perna traseira do indivíduo atacado, que permaneceu deitado no chão, vocalizando e estalando os dentes. Ocasionalmente, o indivíduo atacado levantou a cabeça, tentando sem sucesso morder o atacante para se defender. O indivíduo atacado morreu poucos minutos depois do final da agressão. A agressão foi possivelmente causada pela competição por fêmea no cio.

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