3 ms·
the wheel graphic could suggest (though not necessarily) that we evolved from a fresh water creature. Is there any theories on this that you guys know of? it
by autokad 12y ago
the wheel graphic could suggest (though not necessarily) that we evolved from a fresh water creature. Is there any theories on this that you guys know of?
it seems like it was always assumed to be a salt water creature, but it actually makes more sense in my head as a fresh water one, as it would pop into habitats conducive to terrestrial life
- tstactplsignore 12y agoYou're correct, the immediate ancestors of tetrapods almost certainly lived in freshwater, as known intermediate fossils like titaalik were found in fresh water stream deposits[1]. I believe all of the immediate ancestors of and early tetrapods have been found in fresh water deposits, although I can't confirm. [1] http://tiktaalik.uchicago.edu/searching4Tik3.html http://tiktaalik.uchicago.edu/searching4Tik3.html