What science can tell us about how other creatures experience the world
Ross Andersen writes: Amid the human crush of Old Delhi, on the edge of a medieval bazaar, a red structure with cages on its roof rises three stories above the labyrinth of neon-lit stalls and narrow alleyways, its top floor emblazoned with two words: birds hospital. On a hot day last spring, I removed my shoes at the hospital’s entrance and walked up to the second-floor lobby, where a clerk in his late 20s was processing patients. An older woman…