Climate change has long been thought to shrink all animals such as birds, fish and even insects, but due to all free food from humans, urban animals are larger than rural animals. You may be fat.
For over 80 years, researchers have examined records of over 140,000 body sizes in 100 North American mammal species and found that urban animals are growing. This twists the long-standing belief known as Bergmann’s rule, despite rising temperatures due to climate change.
Bergmann’s rule states that animals in warm climates are smaller than animals in cold climates.
“Theoretically, the effects of these heat islands