Halo 4 Wildlife?

What happen to the wild life that was secretly shown to us during the E3 presentation. http://www.youtube.com/watch?v=FCDV5LaJ9Vw (AT 1:39 Top right).
why did 343 decide to scrap it?

Hmm, I never noticed that, quite interesting. 343 probably didn’t have time to incorporate animals, though I would really like to see a lot of wildlife in future Halos but I wouldn’t get my hopes up.

I’m sure they scrapped it like they scrapped the game winning killcam: a game breaking bug.

oh wait they left those in anyway.