Scientists now believe life began long before LUCA. Older organisms, now vanished, passed on vital genetic tools. These 'pre-LUCA' ancestors developed complex biological functions. LUCA inherited ...

Billions of years of evolution have made modern cells incredibly complex. Inside cells are small compartments called organelles that perform specific functions essential for the cell’s survival and ...

Cells have a variety of processes and pathways that can repair damage, remove trash and debris, and boost healing. Scientists have now discovered a novel process in which cells eliminate stuff, and ...