Overhunting

History

Hunting has been an important part of survival for a long time, giving people food, clothes, and tools. However, the history of hunting also includes episodes of overexploitation, particularly in the form of overhunting, which has led to significant declines in certain animal populations and disrupted ecosystems, such as the extinction of species like the woolly mammoth and the saber-toothed cat. The overkill hypothesis, which addresses the Quaternary extinction events, explains the relatively rapid extinction of megafauna after human arrival. This hypothesis posits that these extinctions were intricately associated with human migration and subsequent population growth. One strong piece of evidence for this theory is that about 80% of North America's large mammal species became extinct within about a thousand years of humans arriving in the Western Hemisphere. This rapid disappearance indicates the significant impact of human activity on these species, which emphasizes the profound effect humans have had on their environment throughout history. A 2018 study says that large mammals started to become extinct in Africa at least 125,000 years ago because of human hunting. This extinction occurred 90,000 years earlier than previously estimated. As humans migrated, size-biased extinctions occurred in regions that aligned with human migration patterns, resulting in a significant global decrease in average mammal body size.