They are certainly not cute,
but they're important.
The Bat Scientists, a Scientists in the Field book by Mary Kay Carson, makes a good case.
"'We can't just help the most popular animals and save ecosystems,'explains Merlin [Tuttle, founder of Bat Conservation International]. Bats play an important role in so many ecosystems. They eat insects, pollinate plants, and spread seeds. Whether you like bats or not, the plants and animals of many ecosystems depend on them."
The Bat Scientists, with photography by Carson's husband, Tom Uhlman, is a Cybils middle grade/YA nonfiction nominee. Children aged ten or so and older are the target audience for the popular Scientists in the Field series, but grown-ups will find plenty to like, too.
Note: The bat photograph is not in the book, but from Wikimedia Commons. Taken by Mnolf, "Whiskered Bat (Myotis mysticinus)" appears here under a Creative Commons Attribution-ShareAlike 3.0 Unported license.
The Bat Scientists
by Mary Kay Carson, with photography by Tom Uhlman
Houghton Mifflin, 2010