Most Animals Are Decreasing In Size As Result Of Global Warming

By Lee Cleveland, Polls and Trends - January 18, 2021

Scientists from the University of Granada (UGR) and the Pontifical Catholic University of Chile have succeeded in explaining why ectotherms (animals whose body temperature depends mainly on environmental temperature—that is, most animals) are reducing in size as a result of global warming.

Their study, published in the journal Nature Climate Change, offers the first plausible physiological explanation for the general reduction in organism size that has been observed, as a consequence of global warming. Rising temperatures lead to metabolic restrictions which restrict growth—in other words, the animals cannot develop to achieve larger sizes.

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Tags: Global WArming