Does it prove we came from animals with tails? No. Pigs have eyes, does that mean we came from pigs?
No, but Humans & Pigs are descended, back to a proto Chordate that had that type of eyes. With the few exceptions that lost their eyes, all Fish, Amphibians,Reptiles including Birds & Mammals have this type of eyes.
There is no better love between 2 people than mutual respect for each other WT Young, 2002
Who gave anyone the authority to call me an authority on anything. WT Young, 1969
Since Evolution is only ~90% correct it should be thrown out and replaced by Creation which has even a lower % of correctness. W T Young, 2008