Orangutans of The Camp Leakey Study Area
Adult males - the "kings":
Tom, Kusasi, Yayat, Pola, Adik, Ralph




When I first arrived at Camp Leakey,  three ex-captive sub-adult males were present:
Pola, Yayat, and Kusasi. Over time, starting with Pola, each, in turn, grew cheekpads
and became the dominant adult male. Before them, several wild cheekpadders visited
the Camp for food and females.

To view any image larger and captioned, select it,
or see slide show for all.

TOM,  now the apparent king of  Camp Leakey,  following a fight
in which he defeated  KUSASI,  is the eldest son of TUTUT,   so is
the first of the "native born" of Camp Leakey to take over as the
dominant male.  Like YAYAT before him,  KUSASI still comes to
the Camp, but avoids contact with TOM.

1991
1994
1996
1998
2005
2006
2009


KUSASI,   for many years, was the dominant male orangutan of Camp Leakey,
but he lost a fight with TOM, and was replaced by him.

1990
1991
1991
1992
1993
1994
1994
1995
1995
1996
1997
1998
2000
2007
2008


YAYAT, when he became a cheekpadder, exercised dominance
over Kusasi,  who kept his distance.   But, when Kusasi grew his
cheekpads, becoming an adult,  he turned the tables.   Although
Yayat still visits the Camp, he keeps away from Kusasi.

1991
1991
1991
1992
1994
1996
1996
1998
1998
2004
2004


POLA, after reaching adulthood, did not "reign" long, and, unvanquished, went off into the forest.

1988
1990
1991
1991
1991


ADIK and RALPH
Both were wild orangutans.

ADIK
1990
1990
1991
1991
RALPH
1988
w/SISWI
1988
1989




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