handedness

In case you were wondering, ants turn out to be ambidextrous. Instead of favoring one side or the other as we humans do with our hands, ants show no preference for working with either mandible.  That's the conclusion of a new study by Cassill & Singh: Abstract: The elongation and sharp teeth of ant mandibles are considered important adaptations that have contributed to ants successful colonization of terrestrial habitats worldwide. In extant ant species, mandibles function as hunting and defense weapons, as well as multipurpose tools for excavating soil, cutting leaves, capturing and…