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Life

Feces study gets the poop on gorillas’ diet

Chemical traces in animals’ droppings reflect shifts in recent food consumption.

Life

Genes & Cells

Healing broken hearts, tracing Romani migration using genes, and how insulin irregularities may be linked to obesity.

Math

Maybe there’s a way to find out if reality is a computer simulation

Randomness.

Humans

Lines in the sand may have been made for walking

The ancient Nazca culture’s celebrated desert drawings include a labyrinth meant to be strolled, not seen.

Planetary Science

Violent past revealed by map of moon’s interior

A gravity survey by twin orbiters reveals how much the lunar surface was pummeled by meteorite impacts early in its history.