Zig and Wikki in The Cow: Toon Books Level 3 - Hardcover

Spiegelman again strikes an effective balance between hijinks and education, giving the aliens straightforward but distinct personalities that play well off each other and incorporating an array of ecological facts in a way that flows with the narrative rather than intrudes upon it. Loeffler's art captures animals with a simple realism and aliens with gentle humor, and gives the whole enterprise a breezy zing. --Booklist

Zig and Wikki are extraterrestrial best friends whose adventures on Earth teach them (and young readers) much about the natural world. In The Cow, the dynamic duo lands in the center of a farm ecosystem. An argument forces the friends to separate, but they're brought back together inside a cow's stomach! With facts and photos displayed on Wikki's screen, they learn that everything on Earth is symbiotically connected - just as their own friendship is.