At the university 1.5km north of town along Cipriano Barace is the Museo Ictícola, an extensive aquarium featuring some of the 500 species of Amazonian fish; some are pickled and preserved, some still swimming. The electric-eel skeleton will make you think twice about jumping in the Beni. It's a B$5 moto-taxi ride.
Museo Ictícola
Amazon Basin