National Geographic : 1934 Jan
THE NATIONAL GEOGRAPHIC MAGAZINE Photograph by Edwin L. Wisherd A FEROCIOUS PIRATE OF THE AMAZON REGION Called the "tigerfish" of the Amazon by the late Theodore Roosevelt, the piranha, or caribe, Serrasalmo rhombeus, lives up to its sinister name. It travels in enormous schools, which unhesitat ingly attack any living thing in the water, regardless of size. They can reduce large animals to bare skeletons in a few minutes. In the aquarium small specimens make interesting pets, but they must be kept by themselves or with others of their own species and size. Reduced two diameters. Photograph by Walter H. Chute and Loren Tutell EXCELLENT EXAMPLES OF NATURE'S CAMOUFLAGE The dark-brown leaf fish resembles a dead leaf in color and shape. The illusion is helped by the short barbel on the lower jaw, which simulates the stem of the leaf, and by the fish's habit of floating head down near the surface of the water (see text, page 108). Natural size.