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Ant-loving professor, Adam Hart, shares his passion for leaf cutting ants with Jim Al Khalili. Why do they put leaves in piles for other ants to pick up?

Talking at the Hay Festival, Adam describes the experiments he designed to test the intelligence of the hive mind. When does a waggle dance become a tremble dance? And how do the honey bees know when this moment should be?

We like the phrase ‘as busy as a bee’. In fact, bees spend a lot of time doing nothing at all, a sensible strategy from the point of view of natural selection.

And where does Adam stand on insect burgers?

Producer: Anna Buckley