.....
in the end it is how you define what is a chicken and what is an egg...

not that good of an analogy teongpeng,.....but still there's something to learn from it...

evolution can occur through small changes and changes is small enough that there can be interbreeding between chicken and pre-chicken

also.....the difference in definition of variety and species there's still gray areas....

eg: Saint Bernards and Chihuahuas
if you put them together, they are unlikely to interbreed between the 2 variety of dog due to huge difference in size although breeding can be done artificially....
so species : natural classification or artificial? same goes for variety....
so sometimes it is hard to say that 1 is a new species

there are hermaphrodites in nature also asexual also

hermaphrodite is not 2 gender....just an organism with both male and female reproductive organ allowing reproduction with just 1 parent

you never mentioned about that here :