Octopuses are amazing sea creatures. They are intelligent, have three hearts and blue blood, and they can change color and shape at any time. For these and many other reasons, octopuses are often called underwater aliens. According to some scientists, these animals really came from outer space.
A work was published in the journal Progress in Biophysics and Molecular Biology, which included the opinions of 33 different scientists. Among them appeared Chander Wickramasinghe, a British mathematician, physicist, astronomer and astrobiologist. He is also a supporter of the theory of panspermia, which assumes that life came to Earth from space.
A team of scientists says that the "rain" of microorganisms from space could have initiated so-called Cambrian explosion - sudden appearance in the fossil record of complex animals with mineralized skeletal remains about 541 million years ago. In their opinion, foreign retroviruses played a key role in the diversification of life in the Earth's oceans. The authors also believe that it's possible that a frozen squid or octopus eggs came to Earth several hundred million years ago with comets.
This theory about alien octopuses met with categorical rejection. Many scientists have recognized the work of Chandra Wickramasinghe and other researchers as pure speculation. However, when looking at the octopus and its behavior, it must be admitted that there may be a grain of truth in this speculation.