Okay, it has been ages since I last wrote here, and I feel kind of bad about it. So I am back, and in my return I will point you to a blog post by Olivia Judson from The New York Times (coincidentally Ms. Judson just returned herself after being away on sabbatical). The piece is titled “ ‘Operator? Can You Put Me Through to Ant Nest 251?’” and is a wonderful little examination of ants, and how they communicate.
I have known, for some time, that ants’ main form of communication was through “smelling” chemicals (note: I put smelling in quotes, because I believe it is a little bit different than what we associate with smelling, though in general analogous). Ants can leave all sorts of chemical trails to direct the movements and actions of others in their colonies. They are also quite sensitive to anything that doesn’t smell right to them (aka. a probably threat). This system of chemical communication seems to work out quite well for the little insects. As Ms. Judson points out in her piece that ants can account for more than a quarter of the biomass (mass of all living things) in some tropical regions. I have further read (though I don’t have a cited confirmation here – apologies, look this up yourselves) that the total biomass of all ants on Earth is about equal to the total biomass of all humans on Earth. Just think about that for a second . . . how many ants do you think make up your personal body mass? Then think about how there are about 6.7 billion people in the world. Conclusion: A hell of a lot of ants on our planet.
I digress though . . . the article really focuses, in stead of formian chemical comunication, on how ants can stridulate (I assume kind of similar to crickets and grasshoppers, though not 100% certain) to make small sounds. These sounds can provide further forms of communication within the various ant species. Just as we humans communicate in more ways than just language, so to do ants convey messages beyond just their reliable chemical trails.
And Ms. Judson closes off on a valuable point in regards to how we think of other animals (and perhaps science in general). We often, even without thinking about it, commit the fallacy of anthropocentrism in assuming that because we humans act in a certain way other living things (and the universe in general) will, and should, act that way too. This is one of the great challenges in science, to distinguish what we think should be from what actually is. The world does not always (in fact might very rarely ever) confirm with our views and desires. If we look only for the facts that support our beliefs or ideals then we are committing bad science and not really seeking a greater knowledge of the world. Something to think about.
Take care.