life as we know it
- existenceState of being real
- humanityPeople as a whole
- earthSoil or electrical grounding
- mortalityState of eventual death
- biologyStudy of organisms
civilization · carbon · oxygen · consciousness · evolution · survival · planet · ecosystem · nature · breath · heartbeat · DNA · organic · terrestrial · familiar · ordinary · reality · world
existence vs. non-existence
life as we know itextinction
Complete vanishing of a species
oblivion · annihilation · death · apocalypse · nothingness