Tomohiro Yonezawa and his colleagues analyzed the births of calves by months and days on one of the farms in the surrounding area of Tokyo from 2011 to 2013. The study revealed an abnormally high birth rate of calves during the full moon. During this time, according to scientists, born 428 calves, most of which came to light in the days and nights that preceded the onset of the full moon, during the full moon or directly after it. This dependence was particularly evident among parous cows.

"We, as veterinarians, are often interested in whether we can uncover those issues that are difficult to study among the people, for example, conventional Pets. Our study is an example implementation of this approach, but we still need to repeat the experiments on larger groups of cows. In addition, we don't know whether people obey this rule and why it exists", — said T. Yonezawa.

It is not clear what causes such an unusual pattern and whether they are associated with the Moon. Scientists propose to conduct more extensive observation of the cows in order to confirm or refute the existence of such relationship, and also reveal how it works at the biological level.