The Surinam toad has a very flattened body and a very flattened triangular head, brown in color, so much to resemble a leaf.  Its prerogative is to hatch the eggs on the back: the skin of the female swells and forms a pocket for each egg. The female carries the eggs on the back for three months until the toads develop completely, and they come out from the pockets on the back of the mother. 
Distribution: this species is endemic to northern South America
Feeding: fish, especially crustaceans