Table 1. Characteristics and background information on the study population.
| Name | ID | Sex | (Estimated) Year of Birth | Origin | Age Category at Arrival at MONA | Predominant Housing Condition During Infancy (With or Without Conspecifics) | Former Pet or Entertainment Chimpanzee* |
|---|---|---|---|---|---|---|---|
| Africa | AFR | F | 2000 | wild | Sub-adult | without | Pet |
| Bea | BEA | F | 1985 | wild | Adult | with | Entertainment |
| Bongo | BON | M | 2000 | captive | Sub-adult | with | Entertainment |
| Charly | CHA | M | 1989 | captive | Sub-adult | with | Entertainment |
| Cheeta | CHE | F | 1990 | wild | Adult | without | Entertainment |
| Coco | COC | F | 1994 | wild | Adult | without | Pet/ Entertainment |
| Juanito | JUA | M | 2003 | captive | Sub-adult | with | Pet/ Entertainment |
| Marco | MAR | M | 1984 | captive | Adult | with | Entertainment |
| Nico | NIC | M | 2001 | captive | Sub-adult | without | Pet/ Entertainment |
| Pancho1 | PAN | M | 1990 | captive | Sub-adult | with | Entertainment |
| Romie2 | ROM | F | 1979 | wild | Adult | with | Entertainment |
| Sara3 | SAR | F | 1998 | captive | Sub-adult | without | Pet/ Entertainment |
| Tico | TIC | M | 1985 | wild | Adult | without | Entertainment |
| Tom | TOM | M | 1985 | wild | Adult | with | Entertainment |
| Toni | TON | M | 1983 | wild | Adult | with | Entertainment |
| Toto4 | TOT | M | 1956 | wild | Adult | with | Entertainment |
| Victor | VIC | M | 1982 | captive | Adult | without | Pet/ Entertainment |
| Waty | WAT | F | 1996 | captive | Sub-adult | with | Entertainment |
Abbreviations: F = female, M = male.
1died in 2007,
2died in 2011,
3died in 2012,
4died in 2013.
*Chimpanzees often were used for several purposes before arriving at the rescue centre. The term "Entertainment" refers to any type of commercial use such as tourist attraction, street performing, media performing, circus performing and instances of zoo housing.