Video Clips:
White-cheeked crested gibbon
Nomascus leucogenys

Click on a button to run the corresponding video clip.

Click Button	Behaviour	Description	Locality, Date	Author
	Self-groom	Infant "Ethan" (born 13 May 2004) exhibits various types of self-grooming and self-scratching.	Twycross Zoo, UK, 30 August 2005	Amandine Chapelain
	Toe suck	Infant "Ethan" (born 13 May 2004) sucks on his great toe. Toe- and thumb-sucking is very common in hand-reared gibbon infants.	Twycross Zoo, UK, 30 August 2005	Amandine Chapelain
	Somersault	Infant "Ethan" (born 13 May 2004) plays with caretakers and inserts a somersault while running.	Twycross Zoo, UK, 30 August 2005	Amandine Chapelain
	Gallop	Infant "Ethan" (born 13 May 2004) displays a fast type of quadrupedal locomotion similar to a gallop.	Twycross Zoo, UK, 5-11 September 2005	Amandine Chapelain
	Running blind	Infant "Ethan" (born 13 May 2004) runs with closed eyes, somersaults, bumps into a pole and stumbles over objects in his enclosure. Playing "blind" is a common type of play in captive gibbons.	Twycross Zoo, UK, 5-11 September 2005	Amandine Chapelain
	Play in bag	Infant "Ethan" (born 13 May 2004) plays with and in a big paper bag. Several takes.	Twycross Zoo, UK, 5-11 September 2005	Amandine Chapelain
	Allogrooming	The male infant grooms his mother.	Mulhouse, France, April/May 2004	Andrea von Allmen
	Allogrooming	The male infant grooms his mother, in a not very subtle way.	Mulhouse, France, April/May 2004	Andrea von Allmen
	Open-mouth threat	A male infant directs open-mouth threats at a subadult who wants to take some food from the feeding place.	Duisburg, Germany, June/July, 2004	Andrea von Allmen
	Chase	The male infant chases his father.	Osnabrück, France, July 2004	Andrea von Allmen
	Food sharing	The adult female eats salad. The infant male tries to take some of the food away from her and succeeds (passive food sharing). Then the female offers him some more salad (active food sharing).	Osnabrück, France, July 2004	Andrea von Allmen
	Bipedal locomotion	The adult female walks on a bamboo pole.	Besançon, France, Sept. 2004	Andrea von Allmen
	Weaning	The male infant tries to suckle from his mother's breast but she repeatedly walks away, upon which he starts to squeal each time.	Besançon, France, Sept. 2004	Andrea von Allmen
	Weaning	The male infant tries to suckle from his mother's breast but she bites him. He screams, then leaves her and continues to squeal.	Besançon, France, Sept. 2004	Andrea von Allmen
	Weaning	The male infant tries to suckle from his mother's breast but she walks away. He starts to squeal and follows her.	Besançon, France, Sept. 2004	Andrea von Allmen
	Play with branch	The young subadult male "Pinocchio" (born 8 April 1993) hangs from thin branches and plays intensely with them.	Hannover, Germany, 6 August 1997	Thomas Geissmann
	Salto	The subadult male "Pinocchio" playfully throws a plant in the air and catches it again, then suddenly, from a sitting position, makes a salto in the air and runs away.	Hannover, Germany, 8 August 1997	Thomas Geissmann
	Male great call	During a great call sequence of the adult pair "Otti" and "Lena", the subadult "Pinocchio" first does not participate, then adds one great call note and finally accompanies his mother during the twitter at the end of the great call.	Hannover, Germany, 8 August 1997	Thomas Geissmann
	Smacking	The adult female "Lena" smacks her lips repeatedly. This is an idiosyncratic "tic" often exhibited by this particular female, but rarely by others.	Hannover, Germany, 8 August 1997	Thomas Geissmann
	Copulation	The adult pair (Otti + Lena) seems to wait until both offspring are distracted, then begin to copulate (initiated by the female). The subadult "Pinocchio" immediately approaches and watches closely. This seems to disturb the male "Otti", who directs an open-mouth-threat at the juvenile.	Hannover, Germany, 8 August 1997	Thomas Geissmann
	Copulation	During another copulation of the same pair, the adult male suddenly detects a familiar visitor and runs off to direct threats at him. Immediately, the subadult male "Pinocchio" takes his father's place and copulates with his mother. The male infant "Tom" (born 22 Dec. 1995) also approaches and seems to join in.	Hannover, Germany, 8 August 1997	Thomas Geissmann
	Genital present	The adult female "Lena" presents her genital region to her partner "Otti", who proceeds to inspect it.	Hannover, Germany, 8 August 1997	Thomas Geissmann
	Duet	Short section of a duet song bout (pair Otti + Lena). The male alternatingly produces multi-modulated phrases, single boom notes and staccato notes. During the boom note, the inflation of the throat sac is clearly visible. After several male phrases, the female interrupts his singing with a great call phrase. The immature gibbons also participate in the great call. Halfway through the great call, the male adds a coda (a special multi-modulated phrase) and the gibbons jump around during the climax of the great call.	Hannover, Germany, 13 August 1997	Thomas Geissmann
	Duet	Short section of a duet song bout (pair Paultje + Frauke). The infant "Anton" (born 3 Sept. 1996) can be seen (albeit not heard) to join in with its mother's great call. In this pair, the male waits with his coda until the great call is almost finished.	Hannover, Germany, 27 August 1997	Thomas Geissmann
	Duet: male phrases	Several phrases of the adult male "Paultje". During the boom note, the inflation of the throat sac is clearly visible.	Hannover, Germany, 27 August 1997	Thomas Geissmann
	Retrieve infant	During the same song bout, the infant "Anton" closely approaches his father. The female appears to fear for the infant's safety, although the male was never observed to threaten his offspring in the least. She tries to retrieve the infant, but carefully gets out of the way when the singing male passes her by.	Hannover, Germany, 27 August 1997	Thomas Geissmann
	Duet	Short section of the same duet song bout (pair Paultje + Frauke). Again, the infant "Anton" can be seen (albeit not heard) to join in with its mother's great call.	Hannover, Germany, 27 August 1997	Thomas Geissmann