Actually a placental prehistoric wolf is the most popular candidate for the direct ancestor of the whale ... that is if you care to read the current literature.
Actually Pakicetus was most certainly not a member of Canis so not it was not a wolf.
And I was speaking in particular with regard to your glib that you could go from Pakicetus to a whale in a weekend. Evolution does not work on the time scale of a weekend. If one could take a wolf and produce a whale in 2 days that would refute evolution.
No smoking signs by gas stations. No religion in the public square. The government should keep us from being engulfed in flames on earth, and that is pretty much it. -- Jon Stewart, The Daily Show