Deep Earth Life: More Diverse Than We Thought

New research is reshaping our understanding of life's distribution on Earth. Scientists have discovered that the diversity of microbes deep beneath the surface rivals, and sometimes surpasses, that of rainforests and coral reefs. These microbes thrive in extremely low-energy environments, flourishing even at depths where energy supply is far lower than for surface organisms. Researchers suggest subsurface ecosystems may host more than half of all microbial cells. This finding not only deepens our understanding of Earth's life forms but also offers new perspectives on the search for extraterrestrial life.