Briefly about the work of scientists tells Naked Science. The study is about the Devonian extinction, which happened 376-360 million years ago. Then about 70% of animal species disappeared.

Researchers, thanks to sedimentary material, studied changes in oxygen content, bursts of “bloom” of plankton and the flow of substances from the soil on land. It turned out that these indicators changed cyclically. Scientists have suggested that this is how climate change manifested itself. And they occurred due to the precession of the earth’s axis. Precession is a phenomenon in which the axis of rotation of a body changes its direction in space.

The precession is reported to have affected the distribution of heat, winds and precipitation. It must be understood that this phenomenon did not cause extinction in itself, but was one of the factors for him.