Lurking in deep, dark waters, piraiba catfish rely on their barbels to sense prey. These apex predators are the largest catfish in the Amazon River, growing over 100 pounds. Exciting leveled text, thrilling photos, and colorful infographics reel in struggling and reluctant readers as they learn about the piraiba's freshwater and brackish habitats, what it eats, how it hunts, and any threats to its existence.A great animal diversity resource for hi-lo nonfiction. Includes a table of contents, a glossary with pronunciations, further resources, and an index to enhance comprehension.