During their exploration of the North Pacific Ocean, US scientists encountered a rare “Dumbo” octopus. These unique creatures, scientifically known as Grimpoteuthis spp., are the deepest-living octopus species. They are named after their distinctive flapping fins, resembling the ears of Disney’s Dumbo. Dumbo octopuses belong to the “umbrella octopus” group and can be found worldwide in tropical to temperate latitudes, typically dwelling at depths of 3,000 to 4,000 meters. These small creatures, about 8 inches tall, lack ink sacs and use their fins for propulsion. They feed on snails, worms, and other seafloor inhabitants.
Facts/Terms for UPSC Prelims
- Dumbo Octopus: Dumbo octopuses (Grimpoteuthis spp.) are the deepest-living octopus species known for their unique ear-like fins. They belong to the “umbrella octopus” group and are found at great depths in oceans worldwide.
- Umbrella Octopus: This term refers to a group of octopuses, including Dumbo octopuses, known for their umbrella-like appearance due to their webbed arms and distinctive fins, which enable them to float in the water.
- North Pacific Ocean: The North Pacific Ocean is the northernmost and largest of the Earth’s oceanic divisions, extending from the Arctic Ocean in the north to the Southern Ocean in the south. It is home to diverse marine life and serves as a critical area for scientific exploration.
- Ink Sacs: Most octopuses possess ink sacs, which they use as a defense mechanism by releasing a cloud of ink to confuse predators. Dumbo octopuses, however, lack this typical octopus feature.
- Deep-Sea Feeding: Dumbo octopuses primarily feed on snails, worms, and other organisms that inhabit the ocean floor. Their adaptation to deep-sea environments and unique locomotion methods make them fascinating subjects of study for marine biologists and scientists.
