The first pairs were originally launched in 2014, when lions, tigers and bears were given a series of toys wrapped in denim and allowed to literally leave their mark on the fabric.

第一款动物园牛仔裤于2014年发售，其制作过程是将一些包裹着牛仔布料的玩偶丢给狮子、老虎和熊，然后任它们随心所欲地在牛仔布上留下自己的印记。

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Meanwhile, the federal government launched its own investigation which wrapped up late last month without much of a bang.

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Launched last July, the product, which consists of a Chicken Select wrapped in a tortilla, was designed as a quick, portable snack that people could have in between meals.

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