They smell with their antennae, and they interact with their antennae, so when one ant touches another with its antennae, it can tell, for example, if the other ant is a nestmate and what task that other ant has been doing.
触角でにおいを感じ取り 触角でコミュニケーションを取り合います アリ同士は触角を お互いに触れ合う事で 相手が同じ巣の仲間なのか 確認したり 相手の行動を知ることができます