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By Chris Reid, DECRA Research Fellow, Macquarie University Chris R Reid, Author provided Army ants ( Eciton burchellii) are known for their vast foraging raids. Hundreds of thousands of ants flow like a river from their nest site, scouring the jungle as they prey on anything unable to escape the swarm. These raids are enormous undertakings. A single raid can be 20 metres wide and 100 metres long, comprising more than 200,000 ants, running at 13 centimetres per second, and gathering up to 3,000 prey objects per hour. To ensure traffic flows efficiently, army ants construct highways and bridges along the rough forest floor. These structures are built entirely out of worker ants that join their bodies together. ....
Credit: James Herndon A new type of collective behaviour in ants has been revealed by an international team of scientists, headed by biologist Professor Iain Couzin, co-director of the Cluster of Excellence Centre for the Advanced Study of Collective Behaviour at the University of Konstanz and director at the co-located Max Planck Institute of Animal Behavior, and Matthew Lutz, a postdoctoral researcher in Couzin s lab. Their research shows how ants use self-organized architectural structures called scaffolds to ensure traffic flow on sloped surfaces. Scaffold formation results from individual sensing and decision-making, yet it allows the colony as a whole to adjust dynamically to unpredictable environmental challenges. ....
Bridges, highways, scaffolds: how the amazing engineering of army ants can make us smarter creators theconversation.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from theconversation.com Daily Mail and Mail on Sunday newspapers.