In these programs, species may be 'preserved' in captivity awaiting release at an unspecified future date or captive breeding used in a supportive role to supplement dwindling wild populations (Fa et al. 2011).
Narwhals are difficult to keep in captivity.
No attempts to preserve the species in captivity seem to have been made.
In addition, zoo officials argue that research on the animals will help preserve the species both in captivity and the wild.
Why does SeaWorld keep orcas in captivity?
Boycott marine theme parks that keep dolphins in captivity.
O'Keefe, noting that tigers were endangered, said that efforts to preserve the exotic cats "will need to be conducted in captivity".
Because of the low potential for gene flow and population exchange across islands, saving of the remaining birds of almost extinct local populations - be it in the wild or in captivity - is particularly important to preserve the species' genetic potential.
The resulting cladogram follows below: Descriptions of the thylacine vary, as evidence is restricted to preserved joey specimens, fossil records, skins and skeletal remains, black and white photographs and film of the animal in captivity, and accounts from the field.
In an experimental attempt to preserve the declining population of the giant panda, Chinese bear keepers at Hetaoping Wolong Panda Center are training cubs born in captivity to survive in the wilderness.
While in captivity he wrote in his diary, later published as a book, that he was glad the marines had held their fire and thus preserved the possibility of getting home.
