The Adventures of Dewey the Alien: Book One by Marshall Lefferts

The Aliens had been visiting Earth for millions of years, fascinated by the abundant life on this thriving blue world. They are especially curious about the Humans, whose recent advances into (somewhat) higher intelligence and technological capability is most intriguing. Alien explorers sent to study life on Earth are given strict orders to avoid direct contact with these emotionally volatile, and sometimes irrational Humans, lest it open a Pandora's Box of problems the Alien Councils wanted no part of. But it was inevitable that unauthorized contact might happen eventually, given the insatiable curiosity of both species.