The Enigmatic Harp Sponge: A Carnivorous Wonder of the Deep



Marine Biology
The Enigmatic Harp Sponge: A Carnivorous Wonder of the Deep

In the mysterious depths of the ocean, a unique and fascinating creature known as the harp sponge exists. As its name implies, this remarkable organism bears a striking resemblance to a harp, with a structure that sets it apart from the typical image of a sponge.

 

Unlike most sponges that feed on microorganisms, the harp sponge is a carnivore. Found in the tropical deep - sea, it typically has 2 - 6 vertical branches that form a harp - like shape. At the end of each "string" of this natural "harp" are spiky balloon - like structures. When unsuspecting prey, such as small crustaceans, come into contact with these, they are instantly hooked. The harp sponge then envelopes the prey with a thin membrane and begins the digestion process, a far cry from the filter - feeding methods of its more common sponge relatives.

 

Adding to its mystery, the tips of the harp sponge's branches are equipped with transparent bubbles. These bubbles contain sperm, acting like the dandelion seeds of the deep sea. They are released into the ocean currents, spreading the sponge's genetic material far and wide for reproduction. This unique reproductive strategy allows the harp sponge to survive and multiply in the vast and challenging environment of the deep ocean, making it one of the most captivating and unusual inhabitants of the sea.
Latest Stories
Travel News1 minute readPerched atop a hill in the Burgundy region of France, the medieval town of Vézelay is home to the Basilica Sainte-Marie-Madeleine. This architectural masterpiece, blending Romanesque and Gothic styles, holds a pivotal place in history as the spiritual launchpad of the Second Crusade in 1147.
Industry News2 minute readThe Defense Counterintelligence and Security Agency (DCSA) on July 9 released its 2025-2030 IT Strategic Plan, outlining six core objectives to modernize defense cybersecurity, enhance data-driven decision-making, and foster collaboration with industry and academia. The initiative aims to create a secure digital ecosystem aligned with the Pentagon’s broader digital transformation goals, particularly supporting the Department of Defense’s (DoD) Chief Digital and AI Office (CDAO) in advancing AI integration and governance .
Beauty News1 minute readLisbon-based amateur model Sofia Reis, 24, takes center stage in Issue 172 of Life Photos of Foreign Beauties, with a series capturing her daily life in Portugal’s coastal capital. The unpolished yet charming shots, taken by local photographer Ana Costa, showcase Reis in moments of quiet routine—from walking her dog along the Tagus River to arranging fresh flowers in her apartment. Her 173cm frame, often clad in linen dresses and leather sandals, mirrors the city’s laid-back, sun-soaked energy.
Industry News1 minute readRecent leaked reports suggest that Apple's upcoming ultra-thin iPhone 17 Air will be equipped with a battery capacity of approximately 2,800 mAh, a figure that not only falls below the industry-standard 3,000 mAh threshold but also smaller than the battery capacities of all models in the current iPhone 16 series.
Travel News2 minute readNestled in the Saône-et-Loire department of Burgundy, France, the Abbey of Cluny (Abbaye de Cluny) stands as a testament to a millennium of history. Founded in 910 by William the Pious, Duke of Aquitaine, this Benedictine monastery was the spiritual and political epicenter of medieval Christendom. Its revolutionary "Cluniac Reforms" reshaped monastic life across Europe, emphasizing strict asceticism, autonomy from secular rule, and unwavering loyalty to the Pope, thereby revitalizing the Catholic Church.
Cultural News1 minute readTo encourage young people to donate blood, Sahlgrenska University Hospital in Gothenburg, Sweden, sends donors a text message when their donated blood is actually used. This lets them know their contribution has truly helped someone in need.
Industry News1 minute readThe Office of the United States Trade Representative (USTR) announced the initiation of a Section 301 investigation into Brazil. The probe will examine whether Brazil’s policies and practices in areas such as digital trade, electronic payment services, "unfair" preferential tariffs, intellectual property protection, ethanol market access, and deforestation-related measures negatively impact U.S. trade interests.