Ants Construct Ingenious Contraption to Keep Themselves From Drowning
A species of fire ant can turn tiny grains of sand into a powerful tool for extracting food, in a clever design meant to reduce drowning risk. Humans, apes, crows, elephants, sea otters and other vertebrates are known tool users. Insects, not so much. Indeed, very few invertebrates have displayed this capacity, which is often…