What is the origin of bacteria, surely they couldnt have appeared on the Earth from no-where?
IF abiogenesis occurred (I’m agnostic, so I’m really on the fence about the origins of life, although I DO believe in evolution at least from as far back as bacteria for sure), I’m going to have to roll with the theory that it occurred on Mars and a few bacteria, already highly evolved from the original product of abiogenesis, survived on a meteorite. The most primitive fossils ever found one earth are still way too complex to have plausibly just blown together in the wind.
