yes HGT (horizontal gene transfer) and epigenetics which change the expression of genes without changing the DNA code sequence itself answers a lot of questions about evolution and makes the old Darwinian tree a bit of a mess.
Tree of life poster (internet image)
Two related studies led by scientists at Harvard and Stanford, also published Aug. 28 in the same issue of the journal Nature, tell a similar story: Even though humans, worms, and flies bear little obvious similarity to each other, evolution used remarkably similar molecular toolkits to shape them.
However, the same Yale lab reports in a separate paper published in the Proceedings of the National Academy of Sciences dramatic differences between species in genomic regions populated by pseudogenes, molecular fossils of working genes.
The human, worm…
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