Cold Water Viscosity May Have Spurred Complex Life's Emergence
2025-01-12
A new study proposes that the high viscosity of cold seawater during the 'Snowball Earth' periods billions of years ago may have driven the evolution of multicellular life. Experiments show that single-celled algae, under high-viscosity conditions, spontaneously formed larger, coordinated groups to maintain feeding efficiency, persisting in this state for generations. This suggests a novel evolutionary strategy for early life to adapt to environmental challenges. While further research is needed, the study offers a fresh perspective on the origin of multicellularity, highlighting the significant role of physical environmental factors in shaping life's trajectory.