Overview8 copies of Do Elephants Talk? (Pioneer). Explore the secret language of elephants and why these huge animals are struggling to survive in the wild. The Explore On Your Own Pioneer and Pathfinder books enable all students to deepen science content knowledge with identical content at two reading levels: Pioneer (grades 2-4) and Pathfinder (grades 4-6). They also provide the opportunity for students to independently apply multiple reading comprehension strategies.