Global warming blamed for smaller species

A research has led scientists to think global warming has lead to smaller species. They found that 38of 85 animal and plant species showed a documented reduction in size. Amongst the shrinking species were strawberries, cotton, crayfish, toads, frogs and iguanas. Research has shown a reduction in weight of animals such as the polar bear and the graceful warbler bird. The ideology is that the warmer the weather, the more calories that are burned which explains the less weight. On the other hand there are some who believe species can adjust to any climate change and therefore global warming should not be blamed.