
Ape Action Africa is a non-profit NGO founded in 1996 dedicated to the conservation of endangered gorillas and chimpanzees, threatened by the bushmeat trade in Central and West Africa. Ape Action Africa manages the rescue and rehabilitation of Great apes across much of Cameroon, with a large sanctuary in the Mefou forest. With more than 300 primates in its care, Ape Action Africa is now one of the largest conservation projects of its kind in Africa. Many of the animals arrive at the sanctuary as orphans, mainly due to the illegal bushmeat trade, which has grown in recent years as a result of deforestation of the Cameroonian jungle.

The Arabian oryx, also called the white oryx, was extinct in the wild as of 1972, but was reintroduced to the wild starting in 1982. Initial reintroduction was primarily from two herds: the "World Herd" originally started at the Phoenix Zoo in 1963 from only nine oryx and the Saudi Arabian herd started in 1986 from private collections and some "World Herd" stock by the Saudi National Wildlife Research Center (NWRC). As of 2009 there have been reintroductions in Oman, Saudi Arabia, Israel, the United Arab Emirates, and Jordan, and as of 2013 the IUCN Red List classifies the species as vulnerable.

The Asiatic Lion Reintroduction Project is an initiative of the Indian Government to provide safeguards to the Asiatic lion from extinction in the wild by means of reintroduction. The last wild population of the Asiatic lion is found in the region of Gir Forest National Park, in the state of Gujarat. The single population faces the threats of epidemics, natural disasters and other anthropogenic factors. The project aims to establish a second independent population of Asiatic lions at the Kuno Wildlife Sanctuary in the Indian state of Madhya Pradesh. However, the proposed translocation has been bitterly contested by the state government.

Bandhavgarh National Park is one of the national parks of India, located in the Umaria district of Madhya Pradesh. Bandhavgarh, with an area of 105 km2, was declared a national park in 1968 and then became Tiger Reserve in 1993. The current core area is spread over 716 km2.

The Borneo Orangutan Survival (BOS) Foundation is an Indonesian non-profit NGO founded by Dr Willie Smits in 1991 and dedicated to the conservation of the endangered Bornean orangutan and its habitat through the involvement of local people. It is audited by a multinational auditor company and operates under the formal agreement with the Indonesian Ministry of Forest to conserve and rehabilitate orangutans. BOS manages orangutan rescue, rehabilitation and re-introduction programmes in East and Central Kalimantan. With more than 500 orangutans in its care and employing between six hundred and a thousand people at a hundred sites BOS is the biggest primate conservation NGO worldwide. Nyaru Menteng and Samboja Lestari are the BOS sites that have received most extensive media coverage. Nyaru Menteng, founded by Lone Drøscher Nielsen, has been the subject of a number of TV series, including Orangutan Diary and Orangutan Island.

Reintroduction of the cheetah in India involves the re-establishment of a population of cheetahs into areas where they had previously existed but were hunted into extinction during and after the Mughal Period, Rajput and Maratha Indian royalty and later by the British Raj, until the early 20th century when only several thousand remained. The Mughal emperor Akbar kept Cheetahs for hunting gazelle and blackbucks. Trapping of large numbers of adult Indian cheetahs, who had already learned hunting skills from wild mothers, for assisting in royal hunts is said to be another major cause of the species rapid decline in India as they never bred in captivity with only one record of a litter ever.

The Jaguar Rescue Center is an animal rescue center located near Puerto Viejo de Talamanca in the Limón Province of Costa Rica. The center is dedicated to the rehabilitation of mistreated, injured, orphaned, and/or confiscated animals. Once the animals are fully rehabilitated, they are reintroduced into their natural habitats in protected areas within Costa Rica, usually after a period in La Ceiba primary forest. Visitors are permitted in the center during certain times each day. The center was founded by the Italian biologist Sandro Alviani and his wife Encar García, a Catalan biologist, who runs it with help of volunteers from all around the world and hosts numerous mammals, birds, reptiles, and amphibians. The center also houses a large serpentarium of venomous and nonvenomous snakes native to Costa Rica.

The Tisch Family Zoological Gardens in Jerusalem, popularly known as the Jerusalem Biblical Zoo, is a zoo located in the Malha neighborhood of Jerusalem, Israel. It is famous for its Afro-Asiatic collection of wildlife, many of which are ascribed in the Hebrew Bible, as well as for its success in breeding endangered species. According to Dun and Bradstreet, the Biblical Zoo was the most popular tourist attraction in Israel from 2005 to 2007, and logged a record 738,000 visitors in 2009. The zoo had about 55,000 members in 2009.

Li Quan (全莉) is a Beijing-born tiger and wildlife conservationist who lives in London. She is credited with the concept of rewilding in the promotion of tiger conservation. This ensures zoo-born tigers develop hunting and other survival skills in a controlled natural environment prior to their return to the wild.
The Osa Wildlife Sanctuary or Caña Blanca Wildlife Sanctuary, is an animal rescue center located in Osa Peninsula in southwestern Costa Rica. The Sanctuary is accessible only by boat and is completely surrounded by Piedras Blancas National Park. The centre is dedicated to the rehabilitation of mistreated, injured, orphaned, and/or confiscated animals. Once the animals are fully rehabilitated, they are reintroduced into their natural habitats in protected areas within Costa Rica, including the Corcovado National Park.

Pleistocene Park is a nature reserve on the Kolyma River south of Chersky in the Sakha Republic, Russia, in northeastern Siberia, where an attempt is being made to re-create the northern subarctic steppe grassland ecosystem that flourished in the area during the last glacial period.

The Eurasian beaver is the target of several species reintroduction programs in Europe. Historically, beavers have been trapped and hunted for their meat, fur and castoreum, to the point of near extinction.

Return of the Wild Horses is the most important in-situ conservation project organized by Prague Zoo. Its aim is to increase the numbers and genetic diversity of Przewalski's horses in their native habitat in Mongolia. Resuming previous similar European projects, Return of the Wild Horses transports and reintroduces captive-bred wild horses into large nature reserves in Mongolia, the project also provides material support to Mongolian rangers who protect and monitor the herds in Great Gobi B Strictly Protected Area. Through yearly transports of horses from the Czech Republic starting in 2011, Zoo Prague managed to increase the population of wild horses in Khomyn Tal by 34 animals.
Rewilding activities are conservation efforts aimed at restoring and protecting natural processes and wilderness areas. This may include providing connectivity between such areas, and protecting or reintroducing apex predators and keystone species.

Samboja Lestari is a private zoo and area of restored tropical rainforest near the city of Balikpapan in East Kalimantan, Borneo, Indonesia, owned by the Borneo Orangutan Survival Foundation (BOS) led by Willie Smits, with the aim of rehabilitating Bornean orangutans. According to Smits, Samboja Lestari uses the principles of People, Planet, Profit, attempting to provide incomes for local people using conservation. It is located about 38 kilometres from East Kalimantan's biggest city, Balikpapan.

Sarek National Park is a national park in Jokkmokk Municipality, Lapland in northern Sweden. Established in 1909, the park is the oldest national park in Europe. It is adjacent to two other national parks, namely Stora Sjöfallet and Padjelanta. The shape of Sarek National Park is roughly circular with an average diameter of about 50 km (31.07 mi).

Project Vibroana is a privately operated serpentarium, rescue centre and environmental education facility located near Turrialba Volcano in the Cartago Province of Costa Rica. The centre is dedicated to the rehabilitation of mistreated, injured, orphaned, and/or confiscated snakes, focusing primarily on venomous species. Once the animals are fully rehabilitated, they are reintroduced into their natural habitats in protected areas, mainly in the Pacuare River primary forest. Visitors are permitted in the centre during certain times each day. The center was created and is run by Minor Camacho, a Costa Rican herpetologist. The educational guide explores the natural history and habitat of poisonous snakes more than their taxonomy.

The Siberian Tiger Introduction Project involves reestablishing populations of the Siberian tiger, also known as the Amur tiger, in their former range and also expanding their range by introducing them as replacements of their genetically similar relative, the extinct Caspian tiger, which inhabited Central and Western Asia. Currently, the Siberian tiger inhabits the cold mountains of the Russian Far East and northern China.

Wild Field is a 300 ha nature reserve near the city of Tula in Tula Oblast in the European part of Russia, approximately 250 km (150 mi) south of Moscow. It was established in 2012 by Russian scientists Sergey Zimov and Nikita Zimov as a companion to Pleistocene Park in Siberia.