The Giant Otter (Pteronura braziliensis) is a relative to the otter, but diurnal, social and bigger.
Foto: Carvalho Junior
The main base of the River Otter Project, at the Lagoa do Peri: accommodation for students, ecovolunteers and researchers.
Foto: Carvalho Junior
The base of the River Otter Project has large and confortable rooms. It can accommodate up to 10 persons.
Foto: Carvalho Junior
The ecosystem of the Lagoa do Peri has a rich biodiversity in birds. The toucan is one of the species that can be easily observed.
Foto: Renato Rizzaro
Ecovolunteers at work. The ecovolunteers participation is extremely important to the development of the research projects. The ecovolunteer take part of all activities, in the field, collecting data and in the base analysing them
Foto: Carvalho Junior
The owl can be observed around the base of the project. It nests in the ground and is very aggressive during breeding season.
Foto: Carvalho Junior
The cuíca, a marsupial, is often seen around the base.
Foto: Carvalho Junior
The coordinator of the River Otter Project in the Amazonia (Giant Otter Project).
Foto: Everton Wegner
The coordinator of the River Otter Project at work with local community in the Amazonia (Lago Amanã).
Foto: Everton Wegner
Bird nest at Lagoa do Peri.
Foto: Carvalho Junior
River Otter Project - community work in the Amazonia - Lago Amanã,
Foto: Carvalho Junior
The research work include the canyons in the highlands of Santa Catarina.
Foto: Renato Rizzaro

Chief Xokleng and the coordinator of the River Otter Project Carvalho Junior. Project with the Xoklengs indians.
Project with the Guarani indians.
Foto: Carvalo Junior
A River Otter Baby (Lontra longicaudis) in the Lagoa do Piri, Santa Catarina, Brasil.
Foto: Carvalho Junior
Ekko Brasil research team. Left to right: Marcelo Tosatii, Alesandra Birolo, Carvalho Junior e Alex Iabrude.
Foto: Arquivo da Ekko Brasil