Global warming makes animals shrink

It has been known for years, that some mammals decreased in size significantly during the two ancient global warming events. The same thing could happen as a result of human caused global warning.

About 55 million years ago, during a period of warming called the Paleocene-Eocene Thermal Maximum (PETM), some mammals such as primates, deer and horses became a lot smaller. But now, a group of paleontologists, have apparently found evidence, that shrinking or dwarfing of mammals, also happened during global warning event that occurred about 2 million years after the PETM.

Furthermore, a new study revealed that predecessors of modern horses, called Hyracotherium, which more no bigger than a small dog,  shrunk about 19 percent during the second global warming event. And why or how would human-induced global warming that is supposedly happening right now, influence mammals to become smaller?

As Mr. Gingerich proposed, under elevated carbon dioxide levels - main cause for global warming - plants tend to grow faster but are less nutritious. Animals, who eat such plants, might adapt by becoming smaller in size.