There may be a shortage of clean drinking water in the future
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they start to run out of places to stay cool and then will eventually run out of food to eat then they will die. hope this helps
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Peahens often choose males for the quality of their trains -- the quantity, size, and distribution of the colorful eyespots. Experiments show that offspring of males with more eyespots are bigger at birth and better at surviving in the wild than offspring of birds with fewer eyespots.