A study in roundworms found that mitochondria remember trauma through multiple generations.

Something to do with the nervous system. Studies have found that on dogs but now we may share that with all beings. Apparently the future generations had more resilience to stress and lived longer. Interesting.

https://www.nature.com/articles/s41556-021-00724-8

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ElwoodBlues · M

Look into methylation of DNA and epigenetics.

From wikipedia

DNA methylation is a biological process by which methyl groups are added to the DNA molecule. Methylation can change the activity of a DNA segment without changing the sequence. When located in a gene promoter, DNA methylation typically acts to repress gene transcription.

Methylation can change gene expression (temporarily, but sometimes more than one generation) without changing underlying DNA.

SatanBurger · 36-40, F

@ElwoodBlues It makes sense, evolution is about survival and that there's different avenues by which a species can survive. I'm betting there's other mechanisms we don't even know about yet. But at the same time, with things like PTSD and stuff, the same stuff that helps you survive can also hurt. It's all interesting to me, I'm very interesting in that subject just because it's fascinating. Most people probably don't find it interesting.