Ant Mega-Colony Covers the World

Deag writes "A mega colony of one family of ants has spread all over the world. Previous mega colonies in California, Europe and Japan have been shown to be in fact one global colony. Ants from the smaller super-colonies were always aggressive to one another. So ants from the west coast of Japan fought their rivals from Kobe, while ants from the European super-colony didn't get on with those from the Iberian colony. But whenever ants from the main European and Californian super-colonies and those from the largest colony in Japan came into contact, they acted as if they were old friends."

Comments

Re:don't tread on an ant ...

[mckinnsb]

It's also important to discover which species in our planet can actually construct a biosocial structure which matches ours in terms of geographical scope, spanning great oceans without any loss of social integrity. It's one thing to migrate across an ocean - its another thing to migrate across an ocean and not mutate to your environment, which would "cut" you off from the colony. I'm no ant-man, but its my assumption that colonies are identified by sets of pheromones, and I'm assuming that evolution or genetic mutation would impact these pheromones. The fact that these ants can survive nearly anywhere in the world , and also maintain a social bond, is pretty astonishing - and well worth studying.

Not one supercolony

[EZLeeAmused]

One supercolony makes it sound like they have organization (of the ant-ish variety) that spans the globe. This is just a bunch of small colonies whose scents are so similar that members of the other colonies are unable to discern that they are, in fact, not from their own colony.