Animal-Vehicle Collision (AVC) is one of the widest and foremost research segments in the road safety research area. This paper aims to give a critical review of highlighted points and characteristics of different types of research that is within the AVC research segment. There are distinctively four categories of AVC research namely: trend and characteristic of AVC study, AVC spatial modeling study, human-animal behavioral study, and AVC mitigation study. Specific traits of each category are explored and related reported data are presented. In conclusion, each category of AVC research required further analysis especially on gathering comprehensive field data and records.