No, I wasn't stoned. This thought was inspired by the post the other day about how trees evolved independently (e: multiple times) from different plants, the product of convergent evolution.

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[–] 1 point 1 year ago* (last edited 1 year ago)

It's almost a certainly that all current life on earth has the same common ancestors. It makes sense for a ton of reasons.

For example all living organism have dna, and they all use the same 4 nucleic acids that their dna is made from. Neither of those facts are necessary requirements for life to exist, so since 100% of life does both of those things then that's very strong evidence that 100% of life had a common ancestor.

https://en.m.wikipedia.org/wiki/History_of_life

https://en.m.wikipedia.org/wiki/Last_universal_common_ancestor

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