is altering squirrels' sperm - animals living in the Canadian prairies that emerged from hibernation during unusually warm winters were found to 'shoot blanks.'This discovery led a team of researchers from the University of Manitoba to examine the squirrels in hotter African countries, which were determined to grow larger feet due to a warming world.The changes among squirrels, although deemed 'non-lethal,' are warning signs of more considerable consequences potentially ahead that could endanger entire ecosystems.
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