Aerial surveys give new estimates for orangutans in Sabah, Malaysia.
Ancrenaz M, Gimenez O, Ambu L, Ancrenaz K, Andau P, Goossens B, Payne J, Sawang A, Tuuga A, Lackman-Ancrenaz I.
Ancrenaz M, et al. Among authors: ancrenaz k.
PLoS Biol. 2005 Jan;3(1):e3. doi: 10.1371/journal.pbio.0030003. Epub 2004 Dec 7.
PLoS Biol. 2005.
PMID: 15630475
Free PMC article.