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"To optimize its delivery drones, maybe Amazon could take inspiration from the actual Amazon. Army ants in Central and South America aggressively seek out the shortest path over the forest floor to bring home enough food and ensure the future of their colony. This focus on efficiency led the insects to develop a clever trick: They link their bodies together to fill potholes and build living bridges. As more ants join in, the bridges shift locations to span larger and larger gaps, shortening the path ants have to take when carrying food back to the nest. But because each brick in the bridge is also a lost forager, the ants reach a point where a slightly better shortcut just isn’t worth the cost, according to new analysis of this insect construction work."
