How many teeth does a crocodile have? Which is the world's most poisonous animal? How do orcas hunt? Come face to face with the world's top predators on this unforgettable tour of nature's deadliest and scariest hunters. Fast Facts is a new series of high-interest, lower reading ability books aimed at fact-hungry children who enjoy information books but may be less confident readers or have difficulty with the usual quantity and level of text aimed at their age group.