When alien pals Zig and Wikki lose their spaceship on Earth, their friendship is definitely in trouble. In order to get home, they must travel through a farm and into a cow, picking up fun facts about ecology (and picking fights) along the way. Nadja Spiegelman and Trade Loeffler's funny, science-based early-reader is packed with fast-paced adventure and facts about poop: what more could a young reader want?