Did you know that electric eels can make 800 volts of electricity? Meet giant arapaimas, hungry piranhas, and other fascinating fish at the Smithsonian National Zoo in these first books reviewed by Smithsonian experts. Bring augmented reality to your students by downloading the free Capstone 4D app and scanning for access to awesome videos!

The nation's zoo -- Arapaima -- Banded leporinus -- Black pacu -- Channel catfish -- Electric eel -- Flagtail Characin -- Freshwater stingray -- Japanese koi -- Plecostomus -- Red-bellied piranha -- Silver arowana -- Twig catfish.