10+ hour, 58+ min ago  (732+ words) A reexamination of microfossils found in the Brazilian state of Mato Grosso do Sul shows that the marks previously interpreted as traces of worms or other small oceanic animals are actually communities of fossilized microscopic bacteria and algae. These findings…...

1+ week, 1+ day ago  (14+ words) From the first botanical characterization of cyanobacteria about two centuries ago to contemporary studies...

1+ week, 2+ day ago  (150+ words) astrobiology. com Biosignatures: Evidence for Endogenous Collagen in Edmontosaurus Fossil Bone Analytical Chemistry via Pub Med Reports of proteins in fossilized bones have been a subject of controversy in the scientific literature because it is assumed that fossilization results in…...

1+ week, 6+ day ago  (266+ words) Extinctions 400 million years in the making New geochemical tool detects ancient ocean chemistry The team applied an innovative technique called carbonate-associated phosphate (CAP), sampling rocks from seven globally distributed sites, including Anticosti Island in Quebec, to directly measure fluctuations in…...

1+ mon, 2+ week ago  (293+ words) Reconstruction of Jiangchuan biota (~554-539 million years ago). Credit: Xiaodong Wang. Credit Xiaodong Wang Other ancestral groups among the fossils included worm-like bilaterian animals (having bilateral symmetry), some with complex feeding adaptations, alongside rare fossils interpreted as early comb jellies. Many…...

1+ mon, 2+ week ago  (188+ words) Ichnofossils in Volcanic Glass From Palaeoproterozoic Hydrothermal Vents Were Burrowed By Microorganisms Probably Sseeking Phosphate'astrobiology. com Ichnofossils in Volcanic Glass From Palaeoproterozoic Hydrothermal Vents Were Burrowed By Microorganisms Probably Seeking Phosphate Ichnofossils in basaltic glass are putative microscopic trace fossils…...

2+ mon, 2+ week ago  (583+ words) Hydrothermal vents on the ocean floor release carbon dioxide that is many million years old. This old carbon originates from the Earth's interior, and it escapes either directly from the Earth's mantle or is produced when rocks that contain limestone…...

3+ mon, 2+ week ago  (175+ words) astrobiology. com Microbial Communities Of Selected Regions Of The Deep Springs Lake Aquifer System Deep Springs Lake is a small, isolated, highly alkaline soda lake in Inyo County of Eastern California, USA. It is a seasonally filled salt lake or…...

3+ mon, 2+ week ago  (157+ words) astrobiology. com These data allowed us to hypothesize on the evolutionary steps that led to the origin of P. tenue and thus bring us closer to explaining the conditions that led to the evolutionary emergence of a unique purple-green symbiosis. Explorers…...

3+ mon, 2+ week ago  (141+ words) astrobiology. com Tricorder Tech: A Non-Invasive, Label-Free Method for Examining Tardigrade Anatomy Using Holotomography Background/Objectives: Holotomography is an advanced imaging technique that enables high-resolution, three-dimensional visualization of microscopic specimens without the need for fixation or staining. Methods: We use…...