[connectthedots]

It does not follow that different members of the same higher-level taxon can necessarily interbreed. Gibbons and gorillas are both apes, but they can't interbreed either.

Assuming this to be true, then maybe you can tell us just what 'ape' is the ancestor of man? Maybe you can also explain why there are no transitional forms between this particular ape and man? Why are none of them still living?

[stands2reason]

Maybe you can also explain why there are no transitional forms between this particular ape and man? Why are none of them still living?

IMHO, we killed them off.