TPO42
Question：
Using the example of the thunderbird, explain a possible effect of a major climate change.
示例回答：
In the lecture, the professor provides an example to illustrate the theory that when a major climate change occurs, it may lead to the extinction of various animals and plant species. That is, a giant Australian bird called thunderbird became extinct due to a climate change. Researchers have found many thunderbird bones all together in one spot which is really rare. So they believe that there is a climate change behind it. The hypothesis is, they think that during a long and dry period, the birds may have flocked together at this lake. And if it lasts too long without raining, the birds have to gather there and die. Scientists think the lake where they found the bones was one of the last remaining sources of freshwater during the drought. So the birds gathered there and struggled for a while and eventually the lake dried up and the species was extinct. And that's the example the speaker presented to explain the theory.
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