Why is it important to flatten the curve by reducing the peak number of infections during a pandemic

not always but somethings can be reproduced in a laboratory.

increases the risk of extinction 

explanation:

the answer is that if the species suffers from the disease, there is nothing stronger than the others, so it is possible to remove wholeness. an example of this is hunger in irish potatoes, which has a deadly disease bearish part of all potato harvest masses. pretty much ruins the land of crops.