Conspiracy theories about alien invasion to the earth usually only appear on the internet. But what if it appears in a scientific journal?
This is done by 33 scientists who are members of the international team.
They released a report in the journal Progress in Biophysics and Molecular Biology and theorized about the existence of alien species that live with humans.
In the report, the researchers concluded that cephalopods (squid, octopus, and cuttlefish) may come from somewhere other than Earth.
"The evidence of the role of space virus in influencing recent terrestrial evolution is contained in the sequence of transcriptom Cephalopoda sequence genes," write the researchers, quoted by BGR, on Thursday (17/05/2018).
"The octopus genome shows a surprising level of complexity with 33,000 more gene protein codes than humans today," he continued.
These scientists oppose the belief that modern cephalopod groups are evolving on Earth.
They propose the possibility that the group of animals are descendants of creatures who arrive on Earth "hitchhike" a frozen comet.
"Big brains and advanced nervous systems, eye-like cameras, flexible bodies, and instant camouflage through the ability to change colors and shapes are just a few of the sudden-appearing features in the evolution scene," the report said.
They reject the features of the octopus as an evolution occurring on Earth's creatures.
They show the possibility that such complexity occurs because octopus eggs hit the ocean when the comet fell millions of years ago.
"So it's likely that cryopreserved squid and / or octopus eggs, arriving on ice bolides a few hundred million years ago should not be discounted," they wrote quoted from Science Alert on Wednesday (16/05/2018).
The opinion of these scientists would immediately get many responses from many parties. One is Denis Noble, a journal editor.
Noble calls that further research is needed to prove the theory.
Though he does not believe in the theory, Noble says there is room for discussion on this subject.
"Space chemistry and biology grow together are important and suitable for journals devoted to the interface between physics and biology to encourage debate," Noble said.
Ken Stedman, a virologist and professor of biology at Portland State University also doubted the content of the report.
"No question, early biology is very exciting - but I think this, if anything, is counterproductive," Stedman was quoted as saying by Live Science on Thursday (17/05/2018).
"Many of the claims in this paper are beyond speculative, and do not even really look at the literature," he added.
For example, says Stedman, the octopus genome has been mapped in 2015.
While there are indeed many surprises, one of the relevant findings is that the octopus nervous system gene apart from the squid was only about 135 million years ago - long after the Cambrian explosion.
Some other scientists also mention that this theory can not be taken seriously. That's because it has not been proven.
Follow me@niko01
