HomeEarly complex life clung to oxygenated seafloors for hundreds of millions of years, scientists discover – Phys.org Early complex life clung to oxygenated seafloors for hundreds of millions of years, scientists discover – Phys.orgCanada Early complex life clung to oxygenated seafloors for hundreds of millions of years, scientists discover Phys.org Early fossil eukaryotes were benthic aerobes Nature