Whale skeleton discovered on the ocean floor near Antarctica
Nine new species of tiny of deep-sea creatures also discovered, scientists say
Scientists say they have discovered a whale skeleton on the ocean floor near Antarctica, nearly a mile below the surface. Researchers say that the bone yard is teeming with strange life, including at least nine new species of tiny of deep-sea creatures.
Whale bones can last anywhere from 60 to 100 years, supporting bacteria and strange creatures like "zombie worms," which are mouthless, eyeless animals that feed off the skeletons.
"At the moment, the only way to find a whale fall is to navigate right over one with an underwater vehicle," study researcher Jon Copley, of the University of Southampton in England says. The team's chance encounter with a 35-foot-long spread of bones that belonged to a southern Minke whale.
The discovery was made as scientists were exploring an undersea crater near the South Sandwich Islands.
"We were just finishing a dive with the U.K.'s remotely operated vehicle, Isis, when we glimpsed a row of pale-colored blocks in the distance, which turned out to be whale vertebrae on the seabed," Copley explained.
When whales die and sink to the ocean floor, their carcasses provide nutritional boosts and habitats for deep-sea life. Whale bones can last anywhere from 60 to 100 years, supporting bacteria and strange creatures like "zombie worms," which are mouthless, eyeless animals that feed off the skeletons.
"The planet's largest animals are also a part of the ecology of the very deep ocean, providing a rich habitat of food and shelter for deep sea animals for many years after their death," Diva Amon, another University of Southampton researcher says. "Examining the remains of this southern Minke whale gives insight into how nutrients are recycled in the ocean, which may be a globally important process in our oceans."
Believed to have been on the seafloor for several decades, the skeleton was surveyed using high-definition cameras. Samples were collected to be studied back on land.
The team encountered several new species of sea snails and worms that were living off the bones. A new species of isopod crustacean, similar to woodlice, crawling over the skeleton was discovered. A statement from the U.K. National Oceanography Center says that researchers also found an unspecified species of zombie worms (Osedax), which could help scientists study how the mysterious species has managed to become surprisingly diverse and widespread.
"One of the great remaining mysteries of deep ocean biology is how these tiny invertebrates can spread between the isolated habitats these whale carcasses provide on the seafloor," Adrian Glover, a researcher at the Natural History Museum in London, said in a statement.
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