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Scientists find early humans cooked food using fire and tools, while teens sleep less due to screens and stress, and earthquake risks grow in the Pacific Northwest.
Researchers are uncovering prehistoric cooking methods through pottery residue analysis, revealing early humans used fire and simple tools to prepare food.
In the Pacific Northwest, increased seismic activity is raising earthquake concerns, particularly along the Cascadia fault line.
Meanwhile, studies show teenagers are getting less sleep than in past decades, with screen time, academic pressure, and social schedules cited as key factors.
These findings highlight ongoing scientific efforts to understand human history, natural hazards, and adolescent health.
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Los científicos encuentran que los primeros humanos cocinaban alimentos usando fuego y herramientas, mientras que los adolescentes duermen menos debido a las pantallas y el estrés, y los riesgos de terremotos aumentan en el noroeste del Pacífico.