"Organisms and their environment constitute a single,unified,self-adjusting systems, and climate and atomospheric composition are maintaind ata constant level right for keeping organism a live ", was called the 'Gaia' hypothesis.
Dr. james E Lovelock
地球はそれ自体が大きな生命体　すべての生命、空気、水、土などが有機的につながって生きている
ガイア　大地の女神