News
Phosphorus Spikes In Ancient Oceans Linked To Major Mass Extinctions
2+ hour, 9+ min 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…...
Spectacular Fossil Treasure Trove Pushes Back Origins Of Complex Animals
1+ mon, 4+ day 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…...
Ichnofossils in Volcanic Glass From Palaeoproterozoic Hydrothermal Vents Were Burrowed By Microorganisms Probably Seeking Phosphate
1+ mon, 6+ day 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…...
How Microbes Use Earth's Ancient Carbon
2+ mon, 1+ day 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…...
Microbial Communities Of Selected Regions Of The Deep Springs Lake Aquifer System
3+ mon, 1+ day 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…...
The Phylogenetic Context For The Origin Of A Unique Purple-green Photosymbiosis
3+ mon, 2+ day 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…...
Tricorder Tech: A Non-Invasive, Label-Free Method for Examining Tardigrade Anatomy Using Holotomography
3+ mon, 5+ day 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…...
Mass Extinction Coincided With Expanded Continental Margin Euxinia During the Cambrian Age 4
3+ mon, 3+ week ago (229+ words) Explorers Club Fellow, ex-NASA Space Station Payload manager/space biologist, Away Teams, Journalist, Lapsed climber, Synaesthete, Na'Vi-Jedi-Freman-Buddhist-mix, ASL, Devon Island and Everest Base Camp veteran, (he/him) " Mass Extinction Coincided With Expanded Continental Margin Euxinia During the Cambrian Age 4 Earth's…...
Lichen Paved The Way For Plants And Animals To Thrive On Earth
3+ mon, 3+ week ago (378+ words) Lichens were already widespread over 410 million years ago, according to a new international study which identifies a fossil from Brazil as one of the oldest lichen in Earth's history. The team used cutting-edge x-ray imaging and other modern techniques to…...
How Did These Strange, Ancient Earth Life Forms Turn Into Such Remarkable Fossils?
3+ mon, 4+ week ago (655+ words) astrobiology. com How Did These Strange, Ancient Earth Life Forms Turn Into Such Remarkable Fossils? In Earth's fossil record, soft-bodied organisms like jellyfish rarely stand the test of time. What's more, it's hard for any animal to get preserved with…...