The IUCN red list : 50 years of conservation = La lista roja de la UICN : 50 años de conservación
The IUCN red list : 50 years of conservation commemorates fifty years of outstanding effort and achievement by a worldwide network of scientists and partner organizations, and celebrates their commitment to protect the Earth's precious species. These pages acknowledge and salute the ongoing work of The IUCN Red List to research, identify, and assess the status of our planet's species.