What Would Happen To Humans If Animals Went Extinct? - Grunge

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Animal extinction does not just mean that people will no longer be able to marvel at and enjoy all the incredible creatures that the Earth has to offer. It also means that the environment for humans will take a huge hit. Everything has a purpose in its environment. It is common knowledge that plant life is essential for things like breathable air, but animal life must also exist for humans to exist as well.

Biodiversity (per Australian Museum) refers to the variety of living things. This includes diversity of genetics, species, and ecosystems. There are over 13 million distinguishable species of plants and animals on Earth. Among the most diverse places are Australia, the Amazon rainforest in South America, and southeast Asia. Even minuscule insects and worms factor into biodiversity.

The Columbia Climate School explained the need for biodiversity through the example of the Yellowstone wolves. The wolves in Yellowstone — America's first-ever national park — were hunted nearly to the brink of extinction. As a top predator in the Yellowstone ecosystem, their absence led to increased populations of herbivores like elk. Too many elk caused too much plant grazing. Too much plant grazing caused erosion near bodies of water and loss of habitat for birds. Loss of habitat for birds caused an increase in insects like mosquitoes, a main food source for birds. It caused a chain reaction that did not change until wolves were reintroduced in 1995, thus restoring needed balance for Yellowstone.

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