IN CONTEXT

KEY FIGURE

Edward O. Wilson (1929–)

BEFORE

1993 The UN proclaims December 29 as the International Day for Biological Diversity.

1996 The Song of the Dodo by American science writer David Quammen explores the nature of evolution and extinction as habitats become more and more fragmented.

AFTER

2014 The Sixth Extinction by environmental journalist Elizabeth Kolbert shows how humans are causing a sixth mass extinction of species.

2016 In Half-Earth, Edward Wilson proposes that Earth can be saved by dedicating half of it to nature.

Biodiversity is the variety of life on Earth—in all forms and at every level, from genes to microbes to ...

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