Why Do Ants Crawl?

This is But Why and today Mermacolologist Brian Fisher is answering your ant questions. Do ants have a better sense of smell than dogs? Well, actually, they can. They actually smell with their antenna. Each species produces a unique set of smells, chemicals,. And they communicate with each other saying, Hey, I found some food or hey danger. That's a chemical and ants actually speak with chemicals. They speak with perfume.