• Email Us: [email protected]
  • Contact Us: +1 718 874 1545
  • Skip to main content
  • Skip to primary sidebar

Medical Market Report

  • Home
  • All Reports
  • About Us
  • Contact Us

Anoxycalyx Joubini: This Giant Volcano Sponge Found In Antarctica May Live For 15,000 Years

February 5, 2025 by Deborah Bloomfield

In the McMurdo Sound region of Antarctica, there lives a species of sponge known as the giant volcano sponge (Anoxycalyx joubini). Though aging the individual animals is troublesome, they may be amongst the oldest animals on the planet.

ADVERTISEMENT GO AD FREE

Sponges, though not the most thrilling of animals in terms of their shenanigans, are pretty interesting creatures. The immobile invertebrates, like corals, form an important part of the ecosystems they inhabit, as well as providing shelter for other, smaller animals. They are also a lot hardier than you might expect. 

“A sponge’s skeletal type adapts well to its particular habitat, allowing it to live on hard, rocky surfaces or soft sediments such as sand and mud. Some sponges even attach themselves to floating debris! Rarely are they found completely free-floating,” the National Oceanic and Atmospheric Administration (NOAA) explains.

“As water filters through a sponge’s porous exterior, the sponge gains some motion, receives food and oxygen, and dispels waste. Inside the sponge, tiny hairlike structures called flagella create currents to filter bacteria out of the sponge’s cells and trap food within them. Their strong skeletal structures help sponges withstand the high volume of water that flows through them each day.”



As well as potentially being the first animals to emerge on the planet, sponges may lay claim to being the oldest living residents. 

Anoxycalyx joubini can grow up to 1.5 meters (5 feet) in diameter and 1.95 meters (6.5 feet) in height, living at depths of between 15 meters (49 feet) and 144 meters (472 feet). A bit like looking at tree growth rates to estimate their age, or guessing a toddler’s age from their height, scientists have attempted to estimate the age of individuals of the species based on how fast they grow. And, it turns out that through measuring them over a 22-year period, A. Joubini takes a long time to grow.

ADVERTISEMENT GO AD FREE

“Anoxycalyx joubini is the largest and most conspicuous sponge in the Antarctic and although it has been observed as much as 2 m [6.6 feet] in height, it has never been observed to settle or grow,” one team explains, “which has led to estimates of extreme longevity.”

Contributing to this long lifetime could be the consistent, cold environment, which also serves to slow down the animal’s metabolism. 

One individual was found to be around 23,000 years old, according to that team’s growth models, with upper estimates saying that the animals, also known as Scolymastra joubini, could live as long as 40,000 years. However, those ages might be a little on the high side, according to further analysis.

“Operating on such times-scales one has to think not only of biological implications but also consider geological events. Fluctuations of the sea level associated with the last glacial maximum (LGM -18,000-22,000 years ago) will probably have left the site of the 2m-S. joubini ‘high and dry’ as the sea level during the LGM was 105-130m [345-427 feet] lower than today. It can therefore be concluded that no marine invertebrate on the Ross Sea shelf can be older than ~15,000 years,” marine biologist Dr Susanne Gatti explained in a 2002 paper.

ADVERTISEMENT GO AD FREE

“Nevertheless, we have to conclude, that hexactinellid sponges in Antarctica are among the oldest if not the oldest living creatures on this planet,” Gatti continued. “Even if the 2m high S. joubini in the Ross Sea was only half the age suggested by growth curve it would still be > 6,000 years old and hence the oldest living creature not only in the ocean but also compared with terrestrial life.”

Deborah Bloomfield
Deborah Bloomfield

Related posts:

  1. Russia arrests top cybersecurity executive in treason case
  2. Is LK-99 A Superconductor Or Not? What To Know About Recent Superconductor Claims
  3. The Mystery Of The Oldest Mummy In Africa
  4. Incredibly Rare Footage Of Bigfin Squid 3,300 Meters Deep In The Pacific

Source Link: Anoxycalyx Joubini: This Giant Volcano Sponge Found In Antarctica May Live For 15,000 Years

Filed Under: News

Primary Sidebar

  • Interstellar Comet 3I/ATLAS Is Losing Buckets Of Water Every Second – And It’s Got Cyanide
  • “A Historic Shift”: Renewables Generated More Power Than Coal Globally For First Time
  • The World’s Oldest Known Snake In Captivity Became A Mom At 62 – No Dad Required
  • Biggest Ocean Current On Earth Is Set To Shift, Spelling Huge Changes For Ecosystems
  • Why Are The Continents All Bunched Up On One Side Of The Planet?
  • Why Can’t We Reach Absolute Zero?
  • “We Were Onto Something”: Highest Resolution Radio Arc Shows The Lowest Mass Dark Object Yet
  • How Headsets Made For Cyclists Are Giving Hearing And Hope To Kids With Glue Ear
  • It Was Thought Only One Mammal On Earth Had Iridescent Fur – Turns Out There’s More
  • Knitters, Artists, And Bakers Unite! Creative Hobbies Can Help Your Brain Stay Young
  • The Biggest Millisecond Pulsar Glitch Recorded Represents An Astronomical Mystery
  • There Are Five Different Types Of Bad Sleeper. Which One Are You?
  • In A World First, Autonomous Underwater Robot Sets Off On Mission To Circumnavigate The Globe
  • First-Ever Living Recipient Of A Pig-To-Human Liver Transplant Survived For 171 Days
  • 190-Million-Year-Old “Sword Dragon Of Dorset” Likely The World’s Most Complete Pliensbachian Reptile
  • Acting CDC Director Calls For Splitting Up MMR Shots – But There’s A Reason We Don’t Do That
  • New Species Of Tiny Poison Dart Frog With Stripy Back And Spotty Legs Loves Bamboo
  • Not A Canine, Nor A Feline: Four Incredibly Cute Fossa Pups Have Been Born At A Zoo
  • The Most “Pristine Star” In The Universe May Have Been Identified – Researchers Link It To Elusive “Population III” Stars
  • 78-Million-Year-Old Crater Reveals Asteroid Impacts Can Create Long-Lasting Habitats For Microbial Life
  • Business
  • Health
  • News
  • Science
  • Technology
  • +1 718 874 1545
  • +91 78878 22626
  • [email protected]
Office Address
Prudour Pvt. Ltd. 420 Lexington Avenue Suite 300 New York City, NY 10170.

Powered by Prudour Network

Copyrights © 2025 · Medical Market Report. All Rights Reserved.

Go to mobile version