As Sim has closed down the thread with the rest of these reports on , I have started a new thread for this last one . All details extracted from Twycross Zoo annual reports , covering period 1st January 1987 to 31st December 2006 -
Bornean orang-utan - 5 at start , 6(1) born , 6 arrived , 8 departed , leaving 2.6 (current ISIS 2.4 after 2 females went to Paris ) .
( first births in 1999 after arrival of male from Munster )
Sumatran orang-utan - 3 at start , 3 arrived , 4 departed , 2 died .
( last female went to Colchester in 1998 )
Western lowland gorilla - 6 at start , 4(1) born , 3 arrived , 3 departed , 1 died , leaving 4.6 ( current ISIS 3.4 )
( 2007 was a bad year with several deaths reported elsewhere on Zoobeat )
Chimpanzee - 25 at start , 12(1) born , 3 arrived , 3 departed , 7 died , leaving 12.17 ( current ISIS 12.18 )
( all births , apart from 1 in 2005 who died 2006 , were between 1990 and 1996 )
Bonobo - 8 arrived , 8(1) born , 4 departed , leaving 4.7 , currently same .
( first 5 arrived 1992 )
I think some of the departures and arrivals of gorillas and orangs were animals going out for mating then returning .
Bornean orang-utan - 5 at start , 6(1) born , 6 arrived , 8 departed , leaving 2.6 (current ISIS 2.4 after 2 females went to Paris ) .
( first births in 1999 after arrival of male from Munster )
Sumatran orang-utan - 3 at start , 3 arrived , 4 departed , 2 died .
( last female went to Colchester in 1998 )
Western lowland gorilla - 6 at start , 4(1) born , 3 arrived , 3 departed , 1 died , leaving 4.6 ( current ISIS 3.4 )
( 2007 was a bad year with several deaths reported elsewhere on Zoobeat )
Chimpanzee - 25 at start , 12(1) born , 3 arrived , 3 departed , 7 died , leaving 12.17 ( current ISIS 12.18 )
( all births , apart from 1 in 2005 who died 2006 , were between 1990 and 1996 )
Bonobo - 8 arrived , 8(1) born , 4 departed , leaving 4.7 , currently same .
( first 5 arrived 1992 )
I think some of the departures and arrivals of gorillas and orangs were animals going out for mating then returning .