Stroke Image highlights the interplay between hypoglycemia and perfusion abnormalities in a person with acute focal neurological deficits.

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In the fossil record, creatures without hard shells or skeletons, such as jellyfish, are rarely preserved for long periods of time. Preservation is even less likely in sandstone, a rock made of coarse grains that is full of pores and typically forms in environments shaped by strong waves and frequent storms. Despite these challenges, fossils dating to about 570 million years ago tell a very different story. During the Ediacaran period, unusual soft-bodied organisms died on the seafloor, were quickly buried by sand, and were preserved with striking detail.

These remarkable fossils have since been discovered in rock formations across the globe. Researchers are working to understand how the Ediacara Biota could be preserved so clearly, especially as impressions in sandstone, a process rarely seen elsewhere in the fossil record. Solving this puzzle could help clarify a major missing chapter in the history of large, visible life on Earth.

“The Ediacara Biota look totally bizarre in their appearance. Some of them have triradial symmetry, some have spiraling arms, some have fractal patterning,” says Dr. Lidya Tarhan, a paleontologist at Yale University. “It’s really hard when you first look at them to figure out where to place them in the tree of life.”

Magecart web skimming campaign active since 2022 stealing credit card and personal data from compromised e-commerce checkout pages.

Bones from a Moroccan quarry belonged to a hominin that lived when the human lineage was splitting

In a study published in the Journal of Archaeological Science: Reports, Dr. Ellery Frahm and his colleagues analyzed two unusual blue-green glazed ceramic sherds discovered in the Gobi Desert in 2016.

Their analysis reveals that the two sherds, originating in small seasonal herding camps, were high-value goods traded from the Persian empire, likely during the Early Islamic period, providing important insight into the far-flung connections and trade networks these nomadic communities were a part of.

Lab-made cosmic fireballs point to ancient magnetic fields shaping the Universe’s missing light.

Researchers show how pig butchering-as-a-service providers equip scam networks with turnkey tools and infrastructure for large-scale online fraud.