I'm thinking the +2/0, hast and vigilance land might be good in Zoo, perhaps in Big Zoo.
EDIT: I'm not sure if it'd be better than Kessig Wolf Run in Big Zoo though. And there are only some many utility lands you can cram in a deck.
Top deck Wild Nacatl, swing for 5. Top deck Qasali Pridemage, swing for 5. Top deck Goyf, swing for 6-8. Nice. I like it as a 1-of in a zoo deck that packs a healthy amount of Sylvan Library's (2-3.)
Brainstorm Realist
I close my eyes and sink within myself, relive the gift of precious memories, in need of a fix called innocence. - Chuck Shuldiner