Kopel Burk & Rachelle Burk 
Walking Fish [PDF ebook] 

A humorous, exciting tale of an ordinary girl who makes an extraordinary scientific discovery-a blind fish that walks When seventh-grader Alexis catches an unusual fish that looks like a living fossil, she sets off a frenzied scientific hunt for more of its kind. Alexis and her friend Darshan join the hunt, snorkeling, sounding the depths of Glacial Lake, even observing from a helicopter and exploring a cave. All the while, they fight to keep the selfish Dr. Mertz from claiming the discovery all for himself. When Alexis follows one final hunch, she risks her life and almost loses her friend. Walking Fish is a scientific adventure that provides a perfect combination of literacy and science.