With three hearts, blue blood, and eight arms that can think on their own, it’s no surprise that people started questioning the origin of octopuses. Their biology is so unusual, and their intelligence is so advanced that they cross boundaries of what we expect from life on Earth. These strange traits have led scientists to wonder whether octopuses are literally out of this world.
There are many reasons why people consider this. For one, octopuses have nine brains: a central brain and one in each arm. Their arms can taste and solve problems like opening jars. They can also change color, pattern, and texture instantly, to blend in with their surroundings or imitate other animals to escape predators. They can also escape tanks, recognize human faces, regenerate limbs, and squeeze through tiny gaps. Their DNA is extremely complex as well, with hundreds of genes that aren’t found in many other animals. These alien traits are what led scientists to believe that octopuses may be of extraterrestrial origin.
In 2018, a controversial paper broke the internet for suggesting that octopuses could have arrived on Earth through panspermia, the idea that life travels through space on comets or asteroids. The authors hypothesized that frozen cephalopod eggs or genetic material might have landed on early Earth, and that octopuses hatched from the eggs. Over time, as they reproduced and evolved, their population on Earth increased, and we now have modern-day octopuses.
However, after extensive research, scientists are clear that octopuses are not aliens. According to BBC Earth, their DNA is fully traceable through Earth’s evolutionary history, back to mollusks that lived more than 480 million years ago. There is no firm evidence of any extraterrestrial genes; their alien qualities come from evolving on a completely different path from most animals for hundreds of millions of years.
In the end, science confirms that octopuses are fully Earth-made, but with nine brains and color-changing skin, it’s easy to see how fascinating they truly are.
Works Cited:
Mark Vins. “Are Octopuses Actually Aliens?” YouTube, 29 May 2025, www.youtube.com/watch?v=hlVSkN4B5B8. Accessed 27 Nov. 2025.
“Octopuses: News, Features and Articles | Live Science.” Live Science, 12 July 2025, www.livescience.com/animals/mollusks/octopuses. Accessed 27 Nov. 2025.
“Facts about Octopuses That Prove They’re Aliens.” Blog.padi.com, 18 Feb. 2021, blog.padi.com/facts-about-octopuses-that-prove-theyre-aliens/.
“DNA Proves Octopuses Are “Aliens.”” Island Bay Marine Education Centre, 26 Aug. 2015, octopus.org.nz/content/dna-proves-octopuses-are-aliens.
“Octopus Facts | Molluscs | BBC Earth.” Bbcearth.com, 2024, www.bbcearth.com/factfiles/animals/molluscs/octopus.
