Japan lost its wolves more than a century ago, but scientists now say exploding deer populations are stripping young trees before they can grow, preventing forests from regenerating across much of the country

Japan’s forests struggle with deer overpopulation, hindering sapling growth and natural regeneration. The extinction of native wolves centuries ago removed a natural predator, allowing deer numbers to rise. Studies show deer browsing significantly damages young trees, preventing them from maturing into forests. Authorities are implementing control programs and protective fencing to manage deer populations. Understanding the historical ecological balance is crucial for developing effective wildlife management strategies.