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Extinction 2

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Harvey Buckle

on 12 May 2017

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Transcript of Extinction 2

To correlate the times when extinctions happened with historical incidents
To be able to predict future extinctions based on existing knowledge
Individuals that are poorly adapted to their environment are less likely to survive and reproduce than those that are well adapted. Similarly, it is possible that a species that is poorly adapted to its environment will not survive at all, and will become extinct.
Here are some of the factors that can cause a species to become extinct:
changes to the environment, such as a change in climate
new diseases
new predators
new competitors
The dodo - an example
The dodo was a large flightless bird that lived on Mauritius, an island in the Indian Ocean. The island was uninhabited, and the dodo had no natural predators. Then Mauritius was colonised by the Dutch in 1638. Dodos were hunted for food, and they were easy to catch because they were not afraid of people. New competitors were brought onto the island, including pigs, cats and rats, which ate the dodos' eggs and their young. Within 80 years, the dodo was extinct.
Describe the correlations of extinctions with world wide events
Humans are sooo bad...
See the GC posts
12thMay 2017
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