The trend toward smaller animals tied to warming.
Scientists from the University of new Hampshire say that with the warming of the Earth has been observed a tendency to reduce animals in their sizes.
About his discovery, the researchers reported in the profile journal Science Advances.
Experts believe that the decrease in fauna can be directly related to the temperature rise on the planet and everybody is aware of global warming. The scientists decided to investigate this fact in more detail. University employees conducted an analysis of fossilized parts of a skull and teeth of animals found in the area of the us with Yellowstone national Park (biosphere reserve in three States).
It turned out that when comparing these remains and bones of mammals of the same species, their sizes declined over time. The change in size began 56 million years ago, when there was an ancient flood. The ancient Sifrhippus shrank by 30 percent over 13 thousand years after the warming, and if возdращении temperature to normal – it has increased by 76 percent.
Scientists explain the dwarfism of some animals also warming process. However, the facts of this trend, many researchers are not surprised, after all, even red foxes living in Equatorial latitudes, smaller in size than their relatives from the Northern natural areas. The reason for the reduction of certain types could also be a shortage of water or food.
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