Marine researchers discovered a new species of tiny blue octopus near the Galápagos Islands this month [6].
The find highlights the vast, unexplored nature of the deep ocean and the potential for discovering unique biological adaptations in extreme environments.
Researchers aboard the research vessel E/V Nautilus identified the creature, which has been formally named *Microeledone galapagensis* [5]. The team encountered the octopus during a deep-sea expedition surveying the seafloor, where it was first captured on remotely operated vehicle video [1, 2].
Scientists collected the specimen after observing that its morphology and coloration did not match any previously known species [1, 2]. The octopus is small, measuring approximately the size of a golf ball with a diameter of about four centimeters [4].
The discovery occurred near an underwater volcanic ledge at significant depths. Reports on the exact location vary slightly, with estimates ranging from 5,800 feet [1], 5,900 feet [3], to nearly 6,000 feet [2] below the surface.
This new species is characterized by its distinct blue hue and glowing spots [1]. Because it was found in the bathyal zone, a region of the ocean between 1,000 and 4,000 meters, it provides new data on how small cephalopods survive under immense pressure and in total darkness.
The E/V Nautilus team used the ROV to document the animal in its natural habitat before bringing it to the surface for formal description [1, 2]. The release of the expedition footage in May 2026 [6] has allowed the broader scientific community to analyze the animal's physical traits.
“The octopus is remarkably small, measuring approximately the size of a golf ball.”
The discovery of Microeledone galapagensis underscores the biological diversity of the Galápagos region beyond its famous surface wildlife. By finding a new species at depths of nearly 6,000 feet, researchers gain insight into the evolutionary specialization required for survival in high-pressure, low-light environments, suggesting that many more undocumented species likely exist in the deep-sea volcanic corridors of the Pacific.
