A few nice endangered species animals images I found:
Female Grooming Male Black Crested Gibbon, Endangered Primate Rescue Center, Cúc Phương National Park
Image by чãvìnkωhỉtз
CRITICALLY ENDANGERED (IUCN Red List of Threatened Species). There is currently thought to be between 1300 and 2000 individuals left in the wild. The species exhibits sexual dimorphism: the male is almost completely black, but sometimes with white or buff cheeks, while the female is a golden or buff colour with variable black patches, including a black streak on the head.
The Endangered Primate Rescue Center (EPRC) is a non-profit organization dedicated to the rehabilitation, breeding, research, and conservation of endangered primates, and to the protection of their habitats.
The overall goal of the EPRC is the establishment of stable populations of highly endangered primate species in captivity as a source for reintroduction programs.
The EPRC is home to about 150 primates in 15 taxa (species and subspecies), - many of which are critically endangered - including six species which are kept only at the EPRC and in no other facility in the world.
All of the animals at the EPRC, except for those bred in captivity, are victims of poaching and the illegal animal trade. Nine primate species have bred at the center and a total of more than 100 infants have been born, some of them being the first ever of their species to be born in captivity.
The primates are kept in more than 50 large enclosures and in two electrically fenced semi-wild areas of primary forest which are 2 ha and 5 ha. These semi-wild enclosures are the first steps towards its ambitious goal of reintroducing the primates to their natural habitat Langurs and gibbons have been released into these areas and have been successfully maintained there for several years. The center employs 20 Vietnamese people as animal keepers.
To support the reintroduction of highly endangered species, the EPRC also works to preserve and protect their natural habitats. They have worked closely with the Management Board of Van Long Nature Reserve, located close by, to successfully prepare the reserve for the successful reintroduction of the Delacour’s langur. Other successful reintroduction programs have taken place or are planned.
Endangered clubshell mussel (Pleurobema clava)
Image by USFWS Endangered Species
Photo by: Craig Stihler/USFWS
Close-up of several of these endangered mussels from Hawkins Creek in West Virginia.