Dumbo Octopus: Deep-Sea Survivor with Elephant Ears — Reading Comprehension

The Dumbo octopus (Grimpoteuthis), named for its distinctive ear-like fins resembling Disney's famous elephant, is one of the ocean's most enchanting deep-sea dwellers. These gelatinous cephalopods inhabit the crushing depths of the midnight zone, typically found between 9,800 and 13,000 feet below the surface.

Unlike their shallow-water relatives, Dumbo octopuses have evolved a delicate, nearly transparent body perfectly adapted to withstand extreme pressure that would instantly crush most other organisms.

Their most striking feature - the large, flapping fins - serve as their primary means of propulsion. By elegantly flapping these ear-like appendages, they can swim in any direction with surprising control, appearing to "fly" through the water like a ballet dancer.

Their bodies contain almost no muscle mass, instead being composed mostly of a gelatinous substance that maintains its structure under pressure. This adaptation makes them incredibly energy-efficient in their food-scarce environment.

Dumbo octopuses are opportunistic hunters, using their eight webbed arms to gently feel along the seafloor for worms, crustaceans, and other small prey. They lack an ink sac - a common defense mechanism in shallow-water octopuses - because in the perpetual darkness of the deep sea, ink would be useless.

Instead, they rely on camouflage and their ability to quickly flap away from danger. Females carry eggs at all stages of development, allowing them to reproduce whenever they find suitable conditions - a crucial adaptation in an environment where mates are rarely encountered.

What is the Dumbo octopus named after?

How does its body adapt to deep-sea pressure?

How does it primarily move through water?

Why don't Dumbo octopuses have ink sacs?

What do they primarily feed on?

How do females ensure reproductive success?

What makes them energy-efficient hunters?

(Vocabulary) What does "gelatinous" describe about the Dumbo octopus?