science 🔬 Shared ancestor led to two separate life paths
Scientists suggest that early life may have originated independently from a shared ancestor, rather than crossing into separate life forms together. This research, led by biologists at Heinrich Heine University Düsseldorf, analyzed genomes from 552 bacterial and 401 archaeal isolates. The findings indicate that LUCA lacked many enzymes, relying on native metals in hydrothermal vents for early metabolism. Bacteria and archaea later developed distinct enzymes to perform the same essential chemical tasks. This parallel evolution points toward two separate paths for free-living cell emergence. 🔬