Wildlife11 September 2021
Animals are ‘shape-shifting’ as a response to climate change
New review of existing research done by the authors of Trends in Ecology & Evolution, show some animals are adapting to climate change by changing their body size.
Research done on more than 30 animals show that average body size is decreasing while appendages and limbs, such as tails, beaks, and legs are growing for some animals. It’s suggested this is in order to adapt to a warming world caused by climate change. A smaller body size holds onto less heat and therefore keeps the animal cooler. Increased surface area though from a larger appendage now allows for better cooling and easier regulation of body temperature. This means larger appendages would be more advantageous in warmer climates than in cooler ones.
Australian parrots were found to have up to a 10% increase in beak surface area since 1871. Shrews and bats were also found to have an increase in ear, tails, legs and wing size as the climate warmed.