CRUMA

American Veterinary Medical Asociation (AVMA)

Chihuahuan Desert Wildlife Rescue

Euronatur

International Fund for Animal Welfare

La fundación australiana del koala

Organización Internacional en defensa y estudio de los Quirópteros

Eurobats

PAWS Wildlife Center

rias-aldeia.blogspot.com.es/

The Hawk Conservacy and Country Park

The Marine Mammal Centre

Tri-State Bird Rescue and Research

Wildlife Ecology Homepage

Wildlife Health Center

World Conservation Monitoring Centre