re: #4 Sharmuta

No- it was so men could woo women. ;)

Well… according to the “Ardi” scientists, that is why we walk upright!

Speaking of which, over at bloggingheads.tv they have a new diavlog up which mostly covers Ardi. The interlocutor is Razib Khan, who is ok I guess but is not Carl Zimmer (who flounced from Bloggingheads over the creationism flare-up). However, his guest is anthropologist Dr. John Hawks who is excellent and worth the listen:

bloggingheads.tv

Recommend playback at 1.4x speed since both are slow speakers.