Fossilized Fat Shows 550-Million-Year-Old Sea Creature May Have Been the World's First Animal

Ilya Bobrovskiy, the Australian National University
Ilya Bobrovskiy, the Australian National University

A bizarre sea creature whose fossils look like a cross between a leaf and a fingerprint may be Earth's oldest known animal, dating back 558 million years.

As New Scientist reports, researchers from the Australian National University (ANU) made a fortunate find in a remote region of Russia: a Dickinsonia fossil with fat molecules still attached. These odd, oval-shaped creatures were soft-bodied, had rib structures running down their sides, and grew about 4.5 feet long. They were as “strange as life on another planet,” researchers wrote in the abstract of a new paper published in the journal Science.

Another variety of fossil
Ilya Bobrovskiy, the Australian National University

Although Dickinsonia fossils were first discovered in South Australia in 1946, researchers lacked the organic matter needed to classify this creature. "Scientists have been fighting for more than 75 years over what Dickinsonia and other bizarre fossils of the Edicaran biota were: giant single-celled amoeba, lichen, failed experiments of evolution, or the earliest animals on Earth,” senior author Jochen Brocks, an associate professor at ANU, said in a statement.

With the discovery of cholesterol molecules—which are found in almost all animals, but not in other organisms like bacteria and amoebas—scientists can say that Dickinsonia were animals. The creatures swam the seas during the Ediacaran Period, 635 million to 542 million years ago. More complex organisms like mollusks, worms, and sponges didn’t emerge until 20 million years later.

The fossil with fat molecules was found on cliffs near the White Sea in an area of northwest Russia that was so remote that researchers had to take a helicopter to get there. Collecting the samples was a death-defying feat, too.

“I had to hang over the edge of a cliff on ropes and dig out huge blocks of sandstone, throw them down, wash the sandstone, and repeat this process until I found the fossils I was after,” lead author Ilya Bobrovskiy of ANU said. Considering that this find could change our understanding of Earth’s earliest life forms, it seems the risk was worth it.

[h/t New Scientist]

A ‘Lost’ Viking Graveyard Was Discovered in Norway

LMGPhotos/iStock via Getty Images
LMGPhotos/iStock via Getty Images

Contrary to popular belief, Scandinavian Vikings didn't send their dead out to sea on flaming ships. When someone died, they buried the body in the ground just as people have been doing across cultures for centuries. A recent discovery sheds new light on the Vikings' version of the practice. As Atlas Obscura reports, an entire Viking graveyard has been unearthed by archaeologists in Norway.

A survey leading up to a highway expansion revealed the site in Vinjeøra, a town located next to an ancient Viking farm. The graveyard contains several boat burials. While there's no evidence of Vikings ever conducting burials at sea in Scandinavia, they did sometimes load their cadavers onto boats—the boats just happened stay on land and act as coffins rather than watery graves. This may have contributed to the modern Viking funeral myth.

Among the boats, the dig team also found the remains of 20 burial mounds, including one that was especially noteworthy. The mound—which had been leveled by centuries of agriculture—once covered a mortuary house where a body was laid to rest. Archaeologists say the size and elaborate nature of the grave indicate that someone important, such as a chieftain or war hero, was buried there.

The house itself is no longer around for researchers to study, but it did leave behind a rectangular footprint, and a few foundational stones as evidence of its existence. By studying the grave mounds and boats, the archaeologists hope to learn more about a group of people that disappeared without leaving behind any written records of their lives.

Viking grave sites don't just tell us who the Vikings revered and how they treated their dead—they can also tell us what they did for fun. Ancient burial boats have revealed that some Vikings were buried with board games.

[h/t Atlas Obscura]

Civil War Cannonballs Found on South Carolina Beach in Aftermath of Hurricane Dorian

ABDESIGN/iStock via Getty Images
ABDESIGN/iStock via Getty Images

Hurricane Dorian skimmed the United States' East Coast last week, creating a trail of damage residents are still dealing with. But it wasn't just trash and debris the storm surges left behind: As WCSC reports, two cannonballs dating back to the Civil War were discovered on Folly Beach in South Carolina in the aftermath of the storm.

Aaron Lattin and his girlfriend Alba were walking on the beach on September 6 when they saw what looked like rocks nestled in the sand. As they examined them more closely, they realized they had found something much more special. The weathered objects were actually cannonballs that have likely been buried in the area for more than 150 years.

Incredibly, this isn't the first time Civil War cannonballs have been discovered on Folly Beach following a hurricane: In 2016, Hurricane Matthew unearthed 16 of them. Folly Island was used as a Union base a century and a half ago, and items leftover from the artillery battery built there are still scattered around the shoreline. The couple behind this latest discovery believes there are more waiting to be found.

Old cannonballs may look like cool artifacts to treasure hunters, but they should still be treated with caution. Police and bombs disposal technicians were called to the scene at Folly Beach to confirm the cannonballs were no longer functional.

[h/t WCSC]

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