Species depletion essay

             A species is a type of organism that breeds together successfully and there are currently between five million and thirty million different species on the earth. Because seventy to ninety-eight percent of the species that have appeared on the planet have either become extinct or evolved, it is clear that extinction and evolution are natural processes. However the current rate of extinction is highly unnatural.
             Species should be preserved for economic, aesthetic and recreational, ecological, and ethical reasons. Economically, species provide various resources ranging from food and medicines to fibers, fuels and construction materials. Also, scientists have gained knowledge from wildlife that can be applied for commercial purposes. Aesthetic and recreational purposes have to do with the beauty of wildlife which has been recorded through various mediums such as art, poetry and music. Recreationally, wildlife is important to hikes, canoe trips, sailing, bird-watching and wildflower studies. Ecologically, each species plays a vital role in the existence and sustainability of other species. These relationships are crucial to the survival of the biosphere. Ethically, humans are just one out of a multi-million range of species, so ethically the question remains about what gives humans the right to destroy other species. The key thing to remember, though, is that excessive extinctions can create a threat to civilization itself.
             There are six major factors that are highly influential in the extinction of a species. These six factors are habitat disturbance, commercial hunting, pest control for crops, collecting of specimens, pollution and introduction of a new predator. Habitat comes in many forms but is basically the destruction of a unique habitat required for the survival of a given species. Commercial hunting is simply over hunting of a species that can result in extinction. Pest control for the protection of crops is a fa...

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