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![](http://computer-classics.de/cah_photo/wp-content/uploads/2023/06/DSC_1795-Edit.jpg)
black-crested gibbon
This gibbon is part of a family living Zürich zoo. Love to watch them swing through their territory – soooo fast and with such ease – just elegant. They are monogam and defend their territory against threats, which renders them one of the big loser species that really suffer under the vanishing rain forest.