The Telegram channel "What's there in Moscow?" published a video of a mutant pigeon with two heads.Bird
Video commented by biologist, zoologist, botanist,Corresponding Member of the Russian Academy of Sciences, Professor of the Department of Medicine of Moscow State University, Candidate of Sciences Evgeny Abizov. According to him, two-headedness is one of the options for the fusion of Siamese twins. This occurs not only in humans, but also in animals. This may be the result of irradiation, mutogenic factors - either during fertilization or during egg formation.
Also in Moscow, there are other anomalies in birds: baldness, multi-fingeredness.
“Two-headedness is one of the options for fusionSiamese twins, is found in nature not only in humans. However, this phenomenon is quite rare. Such individuals usually do not live to a sexually mature state. As for the work of the heads, one can work fully, and the other can function poorly, while having sufficient blood supply. Either both heads function normally, like twins spliced together, ”the expert commented on the video.