In this forensic case report, C. E. Lopes, D. Viana, M. G. Matos, F. Rodrigues, S. Pimentel, and A. Pessoa describe a rare but instructive scenario: 17 stray cats killed under nearly identical conditions, all attributed to an unidentified dog. While dogs are typically valued companions and working partners, the authors note that aggression can arise from mismanagement, stress, or learned behavior.
The paper contextualizes canine aggression more broadly, noting that behavioral deviations leading to attacks are uncommon relative to the millions of dogs living alongside humans. Misinterpretation of canine signals or human-induced stress can, however, contribute to dangerous situations. In some cases, aggression toward cats may be tutor-induced or reinforced, escalating behaviors such as chasing and predation.
The report classifies dog-inflicted injuries into three main categories: non-fatal bite wounds, severe bites leading directly or indirectly to death, and post-mortem lacerations. Distinguishing ante-mortem from post-mortem injuries is challenging and often requires necropsy and histopathological examination. These analyses reveal whether hemorrhage occurred in living tissue and allow investigators to reconstruct the attack sequence.
Across the 17 cases described, the victims exhibited reiterated lesion patterns, suggesting a consistent modus operandi by the same dog. The wounds demonstrated typical canine bite characteristics, enabling forensic specialists to identify the type of animal involved and infer aspects of the attack behavior.
The authors emphasize that while such events are uncommon, they offer critical insights for forensic veterinary science, helping differentiate between accidental attacks, intentional provocation, and post-mortem scavenging. Understanding these patterns also contributes to broader discussions about preventing aggression toward other animals through responsible ownership, proper training, and attention to canine stress signals.
Source: Lopes, C. E., Viana, D., Matos, M. G., Rodrigues, F., Pimentel, S., & Pessoa, A. (2018). Unleashing the Dog: Canine Attack of 17 Victims with the Same Modus Operandi. Published 2018.







