In his 2-million-word journal, the transcendentalist discovered how to balance poetic wonder and scientific rigor as he explored the natural world.
A friend and pupil of Aristotle, Theophrastus isn’t always credited for launching botany, and much else.
French theorists said that American native species were inferior to European plants and animals—the former President went to great lengths to show that they were wrong.
A historian makes the case for Earth’s closest neighbor.
Where others sought separation, Maria Sibylla Merian saw connection.
Alexander von Humboldt revolutionized the Western conception of nature by describing it as an interconnected living web—and in doing so, inspired thinkers from Darwin to Thoreau.