The following stand out: the caimans of the genus Caiman, the yellow anaconda (E.
notaeus), the long-tailed otter (L. longicaudis) and the carpincho (H. hydrochaeris).
They are of importance as a symbol for conservation and tourism. There are above
all the marsh deer (B. dichotomus), the long-tailed otter (L. longicaudis), the
carpincho (H. hydrochaeris), abundant Ciconiiforme birds and the caimans (Caiman
spp.)