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În prealabil postat de Floryan9
Absolut. Nici ei (biologii) nu mai stiu cum sa faca sa iasa partea cu stramosu`. Cand e monofiletic, cand e parafiletc ....bleah totul ca sa dea.
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Dar la modul concret, cum se calculeaza asta ?
Uite, am gasit despre canguri : Humans and kangaroos are close cousins on the evolutionary tree sharing a common ancestor 150 million years ago, according to Australian researchers.
There are a few differences, we have a few more of this, a few less of that, but they are the same genes and a lot of them are in the same order,' said Jenny Graves, director of the Centre of Excellence for Kangaroo Genomics. 'We thought they'd be completely scrambled, but they're not. There is great chunks of the human genome which is sitting right there in the kangaroo genome,' she added.
Humans and kangaroos
last shared an ancestor 150million years ago, the researchers found,
while mice and humans diverged from one another 70 million years ago. :)
Cum stabilim cand ne-am despartit de canguri si pe ce craca stam fiecare ?