[Avodah] Noach Why Did Some Come On Their Own and Others Didn't?

[Micha Berger]

On Sat, Oct 25, 2008 at 08:19:41PM -0400, Cantor Wolberg wrote:
: I see a different reason for why the unclean animals came on their  
: own, whereas, the clean animals, Noah had to get them.  The unclean  
: animals were not going to be sacrificed, so they were safe and secure  
: in the Ark.  The fate of the clean animals, on the other hand, was not  
: anything they looked forward to, hence, they had to be found.  

But two each of the kosher species must have made out okay. So why
wouldn't this notion only apply to the other 5 or 12? (Depending upon
whether noach brought along 7 or 7 pair.)

Tir'u baTov!
-Micha