A loving chicken. there never was some loving little monkey that turned into a loving human, if so, why the forget are there still those damn monkeys we see today? So, I beleive that the chicken laid the damn egg.
Could be what Nimbus said, or one species of monkey evolved differently. Also note that we have yet to find a species that is directly related to us, which could mean none of that species is left.
So, why aren't there Cavemen walking here today?
Supposedly there was 3 species of humanoids living during our more primitive stage. One was a very small but very intelligent species, the other was a very large and string species, but stupid, and the last was us, somewhere in the middle. We wiped each out. My source would be a friend studying something about this in school. So I can't say if this is true.
Besides, the reason we evolve is to adapt to changes in the environment and what not. Therefore, older stages of something would not be around because they either adapted to the change or were wiped out because of it.