Perilaku bersarang Orangutan Kalimantan Pongo pygmaeus (Linnaeus, 1760) kandidat rilis di Sekolah Hutan Tembak Lestari, Sintang, Kalimantan Barat = Nesting behavior of Bornean Orangutan (Pongo pygmaeus, Linnaeus, 1760) release candidates at Tembak Lestari Forest School, Sintang, West Borneo

Perilaku orangutan Borneo, pongo pygmaeus (linnaeus, 1760) anak terhadap pengasuhan dan pembelajaran sosial dari orangutan remaja di Pusat Rehabilitasi Sintang Orangutan Center, Kalimantan Barat = Juvenile bornean orangutan, pongo pygmaeus (linnaeus 1760) response to altruism behavior and social learning from adolescent orangutan at Tembak Forest School, Sintang Orangutan Center, West Borneo

Pengenalan sumber pakan dan perilaku bersarang orangutan Borneo pongo pygmaeus (linnaeus, 1760) golongan umur anak tanpa induk di Sekolah Hutan Tembak, Sintang, Kalimantan Barat = Explore to food sources and nesting behaviour of orphaned juvenile Bornean orangutan pongo pygmaeus (linnaeus, 1760) at Tembak Forest School, Sintang, West Kalimantan

Perilaku reproduksi orangutan Borneo, pongo pygmaeus (Linnaeus 1760) jelang usia matang kelamin terkait faktor perkandangan di Pusat Rehabilitasi Sintang Orangutan Center, Kalimantan Barat = Reproductive behavior of adolescent bornean orangutan, pongo pygmaeus (Linnaeus 1760) related to the captivity factor in The Rehabilitation Sintang Orangutan Center, West Kalimantan

Pengaruh Pengunjung terhadap Perilaku Gajah Sumatra (Elephas maximus sumatranus Temminck, 1847) di Kebun Binatang Gembira Loka, Yogyakarta = The Effect of Visitors on Sumatran Elephant Behaviour (Elephas maximus sumatranus Temminck, 1847) at Gembira Loka Zoo, Yogyakarta