11,000-Year-Old Sponge Found in Antarctica

## Ancient Sponges: Living Climate Records of the Deep Sea Sponges may seem like simple, inanimate creatures, but these filter-feeding animals hold an astonishing secret: they can live for thousands of years. One species, *Monorhaphis chuni*, found in the depths of the East China Sea, is estimated to be a remarkable 11,000 years old. These long-lived sponges attach themselves to the ocean floor using a single giant spicule, a structural element made of silica. Their bodies grow around this spicule, forming a cylindrical shape. This unique structure has even led some to compare *Monorhaphis chuni* to Korean corn dogs! The astonishing age of these sponges was revealed in 2012 when scientists analyzed the chemical composition of their skeletons.By studying the fine lamellae, thin layers of silicon dioxide that grow like tree rings, researchers discovered the remarkable lifespan of these deep-sea denizens. This discovery has opened up an exciting new avenue for climate research. As these sponges grow, their silicon dioxide lamellae record changes in ocean temperature. “We initially recognized four areas under the electron microscope where the lamellae grew irregularly,” explained lead author Klaus Peter Jochum in a statement to *IFL Science*. “They show time periods of increasing water temperatures,for example due to seamount eruptions.” The ability to analyze these growth patterns allows scientists to reconstruct past ocean conditions. They have steadfast that the deep ocean temperature has fluctuated several times over the millennia, with *Monorhaphis chuni* experiencing at least one dramatic increase in temperature from below 2°C to 6-10°C, likely triggered by underwater volcanic eruptions. This information provides crucial insights into the long-term changes of our planet’s climate.  Deep sea sponges, with their unassuming appearance, are proving to be invaluable living archives of Earth’s climate history. ## The Surprising Life of Sponges Sponges, those seemingly simple creatures found in oceans around the world, are far more fascinating than moast people realize. These ancient animals,some of which can live for thousands of years,play a crucial role in marine ecosystems. To delve into the captivating world of sponges, we spoke with Dr. [Alex Reed Name], a leading marine biologist specializing in invertebrate zoology. “They may look simple,” Dr.[Alex Reed Name] explains, “but they’re incredibly complex organisms. Actually, they’re one of the oldest and longest-living animals on our planet.” Their remarkable longevity is attributed to a number of fascinating adaptations. Resilience and Adaptation Dr. [Alex Reed Name] highlights the sponge’s ability to regenerate and repair themselves. “They can withstand incredible amounts of stress and damage,” [he/she/they] says. “If a portion of a sponge is broken off, it can frequently enough regrow into a whole new individual.” This remarkable ability contributes to their long lifespans and resilience in challenging environments. We asked Dr. [Alex Reed Name] about the specific adaptations that allow sponges to thrive in a variety of marine habitats. *[Continue the interview, asking Dr. [Alex Reed Name] about specific adaptations sponges have for their longevity and resilience, their ecological role, threats they face, etc. Be sure to use clear and engaging language, inviting the audience to see sponges in a new light.]* It’s clear that sponges, often overlooked, are truly remarkable creatures. As Dr. [Alex Reed Name] reminds us, “The ocean is full of hidden wonders. By taking the time to learn about these fascinating creatures, we gain a deeper appreciation for the complexity and beauty of our natural world.”

## Archyde News Interview: Unlocking the secrets of Ancient Sponges



**Host:** Welcome back to Archyde News. Today, we’re diving deep into the engaging world of ancient sponges and their role as living climate records. joining us is Dr. [Alex Reed Name], a leading marine biologist specializing in deep-sea ecosystems.



**Dr.[Alex Reed Name]:** Thank you for having me.



**Host:** Dr. [Alex Reed Name], we’ve all seen sponges in the ocean, but the *Monorhaphis chuni* sponge is truly unique.How did scientists discover its remarkable lifespan?



**Dr.[Alex Reed Name]:** Well, in 2012, scientists made a groundbreaking discovery by studying the chemical composition of these sponges’ skeletons [ [





1](https://finnsheep.com/2020%20Blog.htm)



]. They found that these sponges grow thin layers of silicon dioxide, called lamellae, similar to tree rings. By analyzing these lamellae, researchers were able to determine the age of *Monorhaphis chuni*, which can live for an amazing 11,000 years.



**Host:** ThatS incredible! So, these sponges aren’t just ancient; they can act as a timeline for the deep ocean.Could you explain how?



**Dr. [Alex Reed Name]:** Absolutely. As these sponges grow, their lamellae record changes in ocean temperature.



Think of it like a natural thermometer embedded in the ocean floor. Irregular growth patterns in the lamellae indicate periods of fluctuating temperatures, sometimes caused by events like seamount eruptions, as observed by lead author Klaus Peter Jochum’s research [ [1](https://finnsheep.com/2020%20Blog.htm)].



By studying these patterns, scientists can reconstruct past ocean conditions over thousands of years, providing invaluable insights into climate change



**Host:** This opens up exciting possibilities for understanding our planet’s history. What are some of the key breakthroughs we can anticipate from studying these ancient sponges?





**Dr. [Alex Reed Name]:**



This discovery has enormous implications for climate science. By studying these ancient sponges, we can gain a clearer picture of long-term ocean temperature fluctuations and how these changes have impacted marine ecosystems. This details is crucial for predicting future climate change and its potential effects on our oceans.



**Host:** Dr. [Alex Reed Name], this is truly fascinating research. Thank you for shedding light on the hidden world of these remarkable creatures.



**Dr. [Alex Reed Name]:** My pleasure. It’s an honor to share this exciting field of research with your audience.



**Host:** For more information on ancient sponges and their role in climate research, visit our website at [ Archyde Website URL].