Oliver Sacks on Clive Wearing, an English musician struck by a devastating brain infection that left him with retrograde amnesia and a memory span of only seconds.
In the first article of a three-part series, Elizabeth Kolbert writes about global warming, melting permafrost, and how the Arctic regions are losing ice.
David Grann reports on a quest to uncover a lost civilization deep in the Amazonian rain forest described as “the last great blank space in the world.”