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Psittacus is a genus of African grey parrots in the subfamily Psittacinae. It contains two species: the grey parrot (Psittacus erithacus) and the Timneh parrot (Psittacus timneh). For many years, the grey parrot and Timneh parrot were classified as subspecies; the former as the nominate, the latter as P. e. timneh.
This may be due to the fact that with proper treatment, captivity can provide refuge against diseases, competition with others of the same species and predators. Most notably, animals with shorter lifespans and faster growth rates benefit more from zoos than animals with higher longevities and slow growth rates. [2]
The grey parrot (Psittacus erithacus), also known as the Congo grey parrot, African grey parrot or Congo African grey parrot, is an African parrot in the family Psittacidae. The Timneh parrot ( Psittacus timneh ) was previously treated as a subspecies of the grey parrot, but has since been elevated to a full species.
The Timneh parrot (Psittacus timneh), also known as the Timneh grey parrot or Timneh African grey parrot, is a West African parrot. Formerly classified as a subspecies of the grey parrot Psittacus erithacus timneh , it is now considered a full species Psittacus timneh .
Alex (May 18, 1976 – September 6, 2007) [1] was a grey parrot and the subject of a thirty-year experiment by animal psychologist Irene Pepperberg, initially at the University of Arizona and later at Harvard University and Brandeis University.
Polypterids in captivity have life expectancies of 10–30+ years. They do well in heavily planted tanks as it mimics their natural habitat. ... (West African bichir ...
The life expectancy is very short, in the wild often only a year, but a captive L. striatus lived for almost 5 years. [3] A more typical captive life expectancy is 2–2½ years. [4] While most are common and not threatened, L. mittendorfi is restricted to Mount Oku and considered Vulnerable by the IUCN. [5]
Between 1970 and 1991 the population of pygmy hippos born in captivity more than doubled. The survival of the species in zoos is more certain than the survival of the species in the wild. [15] [22] In captivity, the pygmy hippo lives from 42 to 55 years, longer than in the wild. [8] Since 1919, only 41 percent of pygmy hippos born in zoos have ...