LifeFirst animals may have lived with almost no oxygen Simple sponges can live with 200 times less oxygen than present atmospheric levels, supporting the idea that animals evolved before oxygen-rich oceans ¿ìè¶ÌÊÓÆµ
LifeOldest human footprints outside Africa found in UK An ancient hominin male and several children were foraging along an estuary in Norfolk almost a million years ago ¿ìè¶ÌÊÓÆµ