New Caledonian crows solve water-displacement puzzles
PLOS Media · Demo · 3 min · 2014 · YouTube title: Causal understanding of water displacement by a crow
Why it's here
Used as vivid evidence of crow intelligence and animal physical reasoning in discussions of cognition.
What it covers
A silent PLOS ONE video of New Caledonian crows solving Aesop's Fable puzzles by dropping objects to raise water and reach food. It shows example trials from experiments testing causal understanding of water displacement.