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EARLY PROKARYOTIC LIFE ON EARTH. “Life was present on Earth by 3.6 or 3.5 b.y. ago but until the latest Proterozoic, 3 b.y. later, it was limited to single-celled organisms. Early on these were only of prokaryotes whose cells lacked nuclei—bacteria, including photosynthetic (which released O2) and methanogenic types and Archaea—but they later included probable unicellular eukaryotes with nuclei.” https://www.sciencedirect.com/science/article/pii/S0012825219302636?via=ihub View in LinkedIn

PRECISE MAGNETIC HISTORY DATING. “Magnetic reversals and the record they leave in the oceanic crust in the form of negatively and positively magnetized stripes paralleling the oceanic spreading centres, among other data, enable us to track the motion path of continents back to 150 Ma with great precision, and back to 230 Ma with some precision.” https://lnkd.in/eJYccnpE View in LinkedIn

MAGNETIC SHIELD AND CAMBRIAN EXPLOSION. “Organic evolution may have been enabled by geodynamic changes, particularly if the possible origin of Earth's strong dipolar magnetic field coincident with the origin of the asthenosphere and plate tectonics about 600 m.y. ago is valid.” https://www.sciencedirect.com/science/article/pii/S0012825219302636?via=ihub View in LinkedIn

SALUTE TO WARREN HAMILTON. “The Plate Tectonic Pump: How the Transition from Single Lid to Plate Tectonics Stimulates Biological Evolution" presented by Dr. Robert Stern and Dr. Taras Gerya. Originally presented at GSA 2019 in Phoenix in the session "Unconventional Ideas and Outrageous Hypotheses: In Honor of Warren B. Hamilton”. https://lnkd.in/ev5Grjwz View in LinkedIn

TESTABLE HYPOTHESIS. “Recent advances in orbital understanding and paleomagnetic evidence suggests such speculative ideas but much more information of course is needed to test it.” https://www.sciencedirect.com/science/article/pii/S0012825219302636?via%3Dihub View in LinkedIn

ORBITAL CONSEQUENCES. “This may have generated torques and frictional heating that caused not only development of an asthenosphere, enabling plate tectonics, but also influenced convection in the outer core. This in turn enabled differential core motions and development of an inner core and internal strong dipolar magnetic field for the first time, shielding Earth's surface from solar-particle bombardment and enabling evolution.” https://www.sciencedirect.com/science/article/pii/S0012825219302636?via=ihub View in LinkedIn

TECTONICS + MAGNETIC SHIELD. “The approximate coincidence of the Ediacarian biological leap forward with the onset of plate tectonics makes a connection between them possible. The link may be that Earth's asthenosphere and its internally generated strong dipolar magnetic field both originated then as a result of Sun/Earth/Moon orbital mechanics.” https://www.sciencedirect.com/science/article/pii/S0012825219302636?via=ihub View in LinkedIn

The Veil Nebula seen by Hubble. https://lnkd.in/dAAK_yED View in LinkedIn

Perhaps one of the stranger children’s toys at the Figueres Toy Museum in Catalinia. This is on a parr with Grimm’s fairy tales. View in LinkedIn

STRANGER THAN STRANGE. “Kangaroos have three vaginas and two uteruses. “Koalas, wombats and Tasmanian devils all share the three-vagina structure. The side ones carry sperm to the two uteruses (and males marsupials often have two-pronged penises), while the middle vagina sends the joey down to the outside world. The programme also suggested that this might explain why marsupial embryos are born at such a premature stage of development.” https://lnkd.in/dNKiT4Z6 View in LinkedIn