Imagine stepping into complete darkness with nothing but a few burning pine branches to light the way. No maps.

Un estudio simula el recorrido en galerías subterráneas y confirma que dos ramas encendidas eran suficientes para guiar al grupo en la oscuridad.

A journey into a dark cave in northern Italy nearly 14,400 years ago has offered archaeologists a remarkably detailed insight into how our prehistoric ancestors explored the…