C. sclerops, the spectacled alligator, has the widest distribution, from southern Mexico to the northern half of Argentina, and grows to a bulky size.
It is remarkable that it should persist in the spectacled bear of the Andes, although it has disappeared in all other living members of the group. The third trochanter of the femur, on the other hand, can scarcely be regarded as primitive, seeing that it is absent in several of the lower groups of mammals.
A large population of spectacled caiman Caiman latirostris nest in the islands.
This region boasts 320 bird species plus about 45 mammal species including the rare Spectacled Bear, and Andean coati.
We hit lucky with a party of Spectacled greenbuls and a little later on fabulous views of Greater bamboo lemurs at very close range.