Science & Environment

Ancient spearheads reveal how Ice Age humans learned the land

Source: Phys.org - latest science and technology news stories · Published

Ancient spearheads reveal how Ice Age humans learned the land
Source: Phys.org - latest science and technology news stories

At the end of the last ice age, early humans crisscrossed the Americas following seasons, rivers and game, often with a trusty spear in hand. Nearly 13,000 years later, archaeologists are using those spearheads to study how America's first inhabitants understood risk.

At the end of the last ice age, early humans crisscrossed the Americas following seasons, rivers and game, often with a trusty spear in hand. Nearly 13,000 years later, archaeologists are using those spearheads to study how America's first inhabitants understood risk.

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The Andes were supposed to stop this cacao killer. They didn't.
Science & Environment

The Andes were supposed to stop this cacao killer. They didn't.

Black pod disease destroys up to a quarter of the world's cacao every year, roughly 700,000 metric tons worth more than $2 billion. The water mold responsible across the Americas is Phytophthora palmivora, and in Colombia it is the dominant Phytophthora on cacao. How it travels a

Phys.org - latest science and technology news stories ·

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Science & Environment

The Solar System chose fire over ice from the very beginning

Ancient iron meteorites reveal that some of the Solar System’s first solid bodies were built mostly from tiny heat-forged rock beads called chondrules, while water-rich dust was largely excluded. The finding pushes this selective planet-building process back to within the Solar S

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