Where are New Zealand's butterflies?

Insecticides, less-attractive hybrid plants, non-native predators or even global warming may be to blame for New Zealand's declining butterfly populations. No matter what the cause, species such as the red admiral, the monarch, and the purple copper butterfly have seen populations drop dramatically in recent years, and some species -- possibly even some that have yet to be described by science -- are teetering on the edge of extinction.

Read more: 'Common' butterflies fighting for survival

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Issue 25

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