First animals may have done without oxygen

• Autores: Colin Barras
• Localización: New scientist, ISSN 0262-4079, Nº. 2957, 2014, pág. 12
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • The simplest animals may have lived in water containing almost no oxygen. The finding suggests the first animals helped raise oxygen levels, rather than needing high levels to evolve. Daniel Mills of the University of Southern Denmark in Odense, and his colleagues, collected breadcrumb sponges (Hallchondria panicea) from oxygenated waters in a fjord. They kept them in an aquarium and slowly lowered the oxygen level to 200 times below the amount currently found in the air. The sponges survived to the end of the study. If modem sponges can live in such conditions, maybe early ones could too.