🛠️ Invention or technique

Butchery and tool-assisted scavenging

Descarnado y carroñeo con útiles de piedra

Date
c. 2.5 Ma · confidence medium
Place
Bouri and Gona (Afar), Ethiopia
Credited to
Australopithecus garhi / early Homo
Field
Life & health

⚠️ Disputed: the sources disagree.

What it is

Ungulate bones with cut marks and percussion fractures show the use of flakes to access meat and marrow. It marks hominins' entry into the carnivore niche.

The cut marks at Dikika (3.4 Ma) are disputed: they may be trampling marks left by animals.

What it led to

  • A high-calorie diet financing a larger brain (the expensive-tissue hypothesis)
  • Competition with carnivores: selective pressure on cooperation and vigilance
  • Food sharing within the group: the first sharing economies
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Sources✓ verified 2026-09-25