Why wild animals attack humans — and what makes one a ‘man-eater’

Wild animal attacks on humans are often dramatic events, but they do not necessarily mean the animal has turned into a "man-eater." A BBC Future article highlights that various triggers can cause wild animals to attack humans, such as self-defense, protecting their young, defending territory, or responding to perceived threats. Wildlife photographer Indrajit Ghorpade emphasizes the distinction between an isolated attack and a genuine "man-eater," which refers to animals that repeatedly prey on humans.

A "man-eater" is defined as an individual animal that consistently hunts humans as part of its behavior. Factors that may contribute to such abnormal behavior include injury or illness, loss of natural prey, and increased interactions with human settlements.

One notorious example is the Champawat tiger, which was responsible for reportedly killing hundreds of people before being shot by hunter and conservationist Jim Corbett. The tiger had lost its upper and lower canines, making it difficult to hunt its natural prey. Consequently, it seemed to have resorted to preying on humans for sustenance.

However, not all human attacks should automatically label an animal as a man-eater. Ghorpade points out that scavenging on human corpses, isolated attacks, and instances of self-defense should not be classified as man-eating behavior. Many factors, including man-animal conflict, human-dominated landscapes, loss of prey, injury, or sickness, can lead to these misclassifications.

The distinction between a single attack and a "man-eater" is crucial because wild animals can pose a danger to humans without developing a pattern of hunting them for food. Instances where a leopard defends itself, a bear is startled at close range, or a crocodile attacks near a riverbank may seem dangerous but do not necessarily indicate that the animal has become a habitual predator of humans.

Authorities should approach each case individually when assessing a threat from a wild animal. They should handle each situation on a case-to-case basis and killing the animal should be the last resort. However, when an animal consistently targets humans and poses an ongoing danger, intervention may be necessary. It is essential to determine whether the animal exhibits habitual man-eating behavior before taking such actions.

Understanding the reasons behind an attack, whether it was defensive or predatory, and whether there is a repeated pattern can help differentiate genuine man-eaters from animals caught in frequent human-wildlife encounters.