Luthfiralda Sjahfirdi1*, Zulfi Atsiil Suandhy1, Tatang Mitra Setia2
...ting behavior in Bornean orangutans (Pongo pygmaeus) as a suitable release subject at the Sekolah Hutan Tembak Lestari forest school, Sintang, West Kalimantan, Indonesia. This study aims to evaluate two orangutan release candidates through nest-building skills. These two orangutans were observed daily between 04:30 and 06:30 pm from September to November 2019 using continuous focal animal and all-occurrence sampling methods....
Herna Febrianty Sianipar1,2,3, Wahyu Widoretno1, Luchman Hakim1, Rezi Rahmi Amolia4, Fatchiyah Fatchiyah1,2,5*
