Earth went through at least two periods of global glaciation (i.e., “Snowball Earth” states) during the Neoproterozoic, the shortest of which (the Marinoan) may not have lasted sufficiently long for […]
Neoproterozoic era
Posted inAtmospheres, Climate, Weather, Cryobiology, Extinction events, Gaia - Planetary Perspectives, Icy Worlds, Press Release
Global Deep Freeze Periods During Snowball Earth Events
A Yale-led research team has picked a side in the “Snowball Earth” debate over the possible cause of planet-wide deep freeze events that occurred in the distant past.
Posted inBiochemistry & Organic Chemistry, Biosignatures & Paleobiology, Genomics, Proteomics, Bioinformatics, Microbiology & Virology, Origin & Evolution of Life, Status Report
Examining The Role Of Oxygen-binding Proteins On The Early Eevolution Of Multicellularity
Oxygen availability is a key factor in the evolution of multicellularity, as larger and more sophisticated organisms often require mechanisms allowing efficient oxygen delivery to their tissues. One such mechanism […]
Posted inBiophysics, Genomics, Proteomics, Bioinformatics, Origin & Evolution of Life, Status Report
Physical Constraints During Snowball Earth Drive The Evolution Of Multicellularity
Molecular and fossil evidence suggest that complex eukaryotic multicellularity evolved during the late Neoproterozoic era, coincident with Snowball Earth glaciations, where ice sheets covered most of the globe.