EBS to reveal ocean survival strategies, from 53°C hydrothermal vents to cooperative hunting, on the 14th

Intense survival strategies in extreme ecosystems are revealed, from 53°C hydrothermal vents to fish that create islands by gnawing on coral.

EBS Docuprime ‘Part 2. Secrets of Survival’ will be broadcast on EBS 1TV on September 14 at 9:55 PM.

- Sea snakes and fish hunt together... the first recorded cooperative strategy in Korea - Life survives even in 53°C ocean waters... extreme ecosystems revealed for the first time - Fish that create islands by gnawing on coral... the secret of how the ocean circulates itself - A massive ecosystem created by birth and death... recording the ocean in its most beautiful form

*Broadcast Date/Time: Monday, September 14, 2026, at 9:55 PM, EBS 1TV

EBS will broadcast Docuprime ‘Part 2. Secrets of Survival’ on EBS 1TV on Monday, September 14, at 9:55 PM. is a nature documentary that looks into the mechanisms of a massive ecosystem through ‘death that seems like an end’ and the ‘struggle for survival.’ In ‘Part 2. Secrets of Survival,’ it is revealed that survival is not determined simply by the superiority of strength, but by an intense ecosystem created as different lives compete and cooperate.

Sea snake vs. Mackerel, cooperative hunting of different species; Bumphead parrotfish, the fish that creates islands by gnawing on coral

Survival is not determined by one's own strength alone. Although sea snakes and mackerel are different species, they show an amazing cooperative strategy by hunting prey together. Through the cooperative hunting of these two species, which has not been well known until now, the intense survival strategies chosen by marine life to survive are captured. Additionally, the Bumphead parrotfish creates fine sand after gnawing on coral. The sand created this way moves along waves and ocean currents to become the foundation for tropical islands. The process where the feeding activity of one life leads to the habitat of new life shows the way the ocean circulates itself.

The 53°C ocean, 'crabs' living in extreme environments, and another survival competition that begins at night

In hydrothermal vents with water temperatures of 53°C, sulfur-oxidizing microbial communities and organisms adapted to extreme environments form a unique ecosystem. Even in an environment that most life cannot endure, a fingernail-sized ‘crab’ survives in another way. The appearance of survival unfolding in extreme environments that cross the boundaries where life can exist will be revealed. When night falls, the ocean turns into a time for predators. Octopuses, Bobbit worms, and Lionfish continue their hunting by utilizing the darkness. Meanwhile, parents risk their lives to protect their eggs and offspring to continue the next generation. The survival scene of the night sea, where competition, sacrifice, and cooperation intertwine, unfolds.

EBS Docuprime ‘Part 2. Secrets of Survival,’ which captures the ocean ecosystem as a massive life circulation system, will be broadcast on EBS 1TV on Monday, September 14, at 9:55 PM, and can be rewatched on the EBS website.

*Related photos are available on the EBS institutional website (about.ebs.co.kr)-Cyber PR Office-Highlight, on the corresponding broadcast date.

◆ At a Glance

· Publishing Institution: EBS

· Category: Docuprime

· Distribution: September 11

Source: EBS Press Release

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