Evolution And Extinction Essay

1002 Words 5 Pages
Earth’s biodiversity is been around for eons, one of the key factors why it have existed that long, is because of evolution and extinction. It is the nature’s way to continually adapt to the fast changing environment, though extinction is the “end of the line” of all living species; it is the key to the survival of the future generation species. But with humans around premature extinction will be a problem due to our selfishness and loss of respect to our environment. With humans also known as “wise man”, they will develop a way to slow down the premature extinction to prolong their existence and the other species as well.
More than 99% of all the species that have existed are now extinct, though extinction eliminates an entire type of specie
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The divergent evolution happens in 2 phases of isolation, the first phase is with geographic isolation, this occurs when different groups from the same population becomes isolated from the other group. For example bears, they vary in sizes and colors but they all came from early population of bear that have separated over a long period of time to live in different environment, polar bears have white, thick fur to blend it with snow because they live in cold parts of the earth while a black or grizzly bear that have a darker fur that lives in the upper lands of North America and Asia. The second phase is the reproductive isolation; it’s when the two groups that was geographically isolated meets again after a long time, will have a very different genetic makeup that will stop them from reproducing with the other population that was once with them. The second type of evolution is convergent evolution is it when two species that are distantly related develops similarity because of the same environment they live in. After the evolution then comes extinction, specie typically exist 1 – 10 million years before going extinct, but some …show more content…
But with today’s technology everyone is now aware of what’s happening and is willing to stop it. Infrastructures are made to shelter critically endangered animal to protect them from poachers and to increase their population by breeding them, other efforts are also made by being greener, more and more people are now recycling their trash, more people are switching to electric cars from the traditional cars to decrease population, and now scientist are mixing genes to prolong a species life. Artificial selection is the process in which desired gene traits and a few more is selected to be breed. Then selective breeding is performed to create large numbers of the specie they desire. One good example is fish genes being mixed in tomato genes, because the fishes can survive through cold weather without freezing and scientist are mixing it with tomatoes to enable the farmers to grow tomatoes during the late seasons. Genetic engineering is now becoming more and more popular with the scientist, because they can manipulate a species DNA, they can make a specie from a single tissue or modify a specie to contain a certain gene, all this genes mixing and creating a new specie is called biopharming. Biopharming had helped premature extinction rates to go down, because they can now modify the genes to have a longer life span by being immune to viruses, pest, and etc. Premature extinction is an unstoppable force

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