Some foxes followed the tourists around the enclosure, pulling at their clothes and begging for treats. These aggressive begging and fighting behaviors are a symptom of overcrowding, and living in a mid-to-high-stress environment, Rob Laidlaw, executive director of Zoocheck, a wildlife protection agency, told The Dodo.
In Japan, foxes primarily inhabit sparsely populated mountainous areas, or the outskirts of villages. They do not naturally come into contact with humans or, for the most part, other foxes, he said.