How a 2004 tsunami revealed monkeys using stone tools
In short: During a biodiversity survey following the 2004 Tsunami, researchers discovered a unique group of macaques in the Andaman Sea. This documentary follows primatologist Amanda Tan as she investigates these extraordinary primates and their unexpected tool-using behaviour.
The film explores the discovery of macaques on Piak Nam Yai island using stone hammers to crack mollusc shells. While great apes like chimpanzees are known to use nut-cracking techniques, this represents a rare instance of hammer use within Old World monkeys. The documentary examines how these efficient foraging methods have led to the non-sustainable exploitation of their food source, marking the only known case of such resource depletion by a non-human species.
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Sources
- Summary by Intellect · source: The Incredible Story of Piak Nam Yai Macaques - From Tsunami to Toolmakers | Full Documentary
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