Light pollution is taking the sparkle out of glow-worm mating

The invention of electric light has extended our lives deeper into the night: street lamps help us travel more safely outdoors, while lighting indoors lets us work and play for longer. Entire stadiums are drenched in light ...

Low upward mobility linked to early mortality

Upward mobility—the capacity to improve one's socioeconomic status—is key to realizing the American dream of a long, prosperous, and happy life, Yale researchers say. In a new study, they found a strong relationship between ...

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