Researchers have systematically detailed, step by step, how cognitive maps form in the brain's hippocampus -- a region responsible for learning and memory.

GEOQUIZ: The rand is the official currency of which country? Answer: South Africa. A rand is divided into 100 cents. The largest coin is worth 50 rand, and banknotes are valued from 10 to 200 rand.

Maps are ubiquitous—on phones, in-flight and car displays, and in textbooks the world over. While some maps delineate and ...