In the frozen soils of Antarctica, where sunlight and moisture are nearly absent, microbes have developed a form of collective resilience that challenges our assumptions about individuality and kinship in nature. Researchers examining 676 species found that nearly all of them carry genetic traces of exchange with unrelated organisms — a practice of sharing survival tools across species lines that has persisted across millions of years. The most prized tool being passed around is the ability to harvest energy from atmospheric gases, a last resort elsewhere but a primary strategy here. In unders