Octopuses are often described as "alien." As marine biologist Dr. Alex Schnell explains, the description fits. "They're just so alien—they have three hearts that pump blue blood, no bones, and skin that can change color in an eye-blink," she recently told Newsweek.
But as the National Geographic series Secrets of the OctopusSecrets of the Octopus reveals, these creatures are far from unfeeling. A clip from the show highlighting Schnell's "magical experience" is capturing the public's imagination, revealing an intelligence that rivals more familiar mammals.
The series, which filmed for over 1500 hours, aims to reveal the hidden lives of these "shapeshifters." For Schnell, the "point of interest" is the intelligence. "But within this really strange framework, we're seeing glimmers of intelligence that we might normally expect to see in, say, dolphin chimpanzees or elephants," she told Newsweek.
An octopus floating in the oceanCanva
That intelligence, as she discovered, extends to something researchers have long sought: complex, interspecies communication.
While filming in the Great Barrier Reef, the crew was observing an octopus they named Scarlett. They witnessed a "particularly amazing" moment of interspecies collaboration. A fish, a coral trout, was seen doing a "headstand" over a piece of coral.
Schnell explained what was happening: "We were able to see rare footage of interspecies communication and collaborative hunting, with the octopus understanding that this coral trout was doing a headstand to indicate where a crab was hiding."
Schnell explained that since the fish "don’t have hands, the headstand was a way of communicating or gesturing about the prey hidden." This gave her an idea. As part of her "crazy" research, she decided to try and mimic the gesture herself.
"She let me get super close and I could see that as she was putting her arms underneath the coral rubble crabs would swim out and escape her grasp," Schnell said. "So I just randomly started to point to where these crabs would go and she immediately responded."
The moment was a breakthrough, a human successfully using a non-human gesture to communicate with an "alien" intelligence. Schnell describes the entire process of filming the series as a "magical experience," noting, “They’re as curious about you as you are about them.”
Of the pointing gesture, she remains a scientist, eager for what's next: “This is just the first step, but it would be a really interesting avenue to further investigate.”
octopus, Secrets of the Octopus, National Geographic, Alex Schnell, marine biology, animal communication, interspecies communication, Great Barrier Reef, Scarlett the octopus, animal intelligence YouTube
This article originally appeared earlier this year.
A woman relaxes with a book at homeCanva
An eviction notice is being attached to a doorCanva
Gif of Kristen Bell saying 'Ya basic!' via 
The chart illustrates that between ages 16 and 20, roughly half the population loses their virginity. By age 22, 90% of the population has had sex.
A group of young people hold their phonesCanva
A frustrated woman at a car dealershipCanva
Bee Arthur gif asking "What do you want from me?" via 
A couple on a lunch dateCanva
Gif of Obama saying "Man, that's shady" via 
Gif of confused woman saying "OK"
A woman rejects a man's advancesCanva
A couple kissingCanva
A house on fireCanva
A smoke detector covered in smokeCanva
The Dahl family gofundme 
A hand reaches for some money on the groundCanva
Lindsey Stirling meet & greet appearance at the Winter NAMM Show in Anaheim, California in 2018