Octopuses are pretty weird. So weird, in fact, that we know very little about their strange and solitary existences, with Quartz suggesting that "they are the closest creature to an alien here on Earth." Now, 33 scientists from respectable institutions like the University of Alberta's Department of Biochemistry and the Center for the Physics of Living Organisms at Michigan Technological University have taken it a step further — and suggested that octopuses might have actually arrived on Earth millions of years ago from outer space, The Daily Grail reports.
The researchers' claim is made in the journal Progress in Biophysics and Molecular Biology, and it suggests that a "plausible explanation" for the octopus' genetic weirdness is that "squid and/or octopus eggs arrived in icy bodies several hundred million years ago."
This is quite the leap from the slightly-less-fringe theory of panspermia, which is "the idea that life has spread throughout the universe via comets, asteroids, etc.," as The Daily Grail explains — although panspermia is typically thought of as a possible method for the delivery of microbes or viruses to our planet. The researchers are actually suggesting that "cryopreserved" octopus eggs crashed into Earth several million years ago as a legitimate explanation for the creatures' extraordinary evolution.
There are plenty of skeptics, including biologist P.Z. Myers, who calls the research "garbage" and notes that while there "are novelties in cephalopod evolution," that doesn't just mean you can use it "as evidence [of] an outer space origin for the octopus." He argues that if octopuses really came from another world, "they would be completely unrelated to any other animal lineage on the planet. They would not be related to other mollusks … They would be totally alien." Read more about the debate over whether octopuses are aliens at The Daily Grail. Jeva Lange