While one can aim to "free" nature from the confines of captivity by shooting from the right angle or by framing features in a tight crop, it is impossible to hide the sadness seen in the eyes of so many caged animals.  However, zoos seem to be a necessity in a world where we are destroying natural habitats at such a rapid rate, and zoo enclosures are getting better.  At least the plants seem to be enjoying themselves!

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