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![CROATIA-ZAGREB-ZOO-HALLOWEEN](http://www.xinhuanet.com/english/2019-10/27/138505961_15721347824831n.jpg)
Gibbons eat food from a Halloween pumpkin in the zoo of Zagreb, Croatia, on Oct. 26, 2019. (Luka Stanzl/Pixsell via Xinhua)
Gibbons eat food from a Halloween pumpkin in the zoo of Zagreb, Croatia, on Oct. 26, 2019. (Luka Stanzl/Pixsell via Xinhua)