A simple DuckDuck go search explains what happens when hunting is limited
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Deer populations can explode when hunting is reduced, leading to increased spread of diseases like chronic wasting disease (CWD). This disease is highly contagious among deer and can have severe impacts on their populations.
Wild boar populations have exploded in the U.S. due to a lack of natural predators and insufficient hunting regulations, leading to their rapid expansion across at least 35 states. They can carry and transmit 30 diseases and 37 parasites, posing significant threats to livestock, pets, and public health.