The IGCP was founded in 1972 to confirm the existence of Gondwana, one of two megacontinents with Laurasia which formed about 145 Ma, by correlating the geology of modern continents.

UNESCO: Open Access to Scientific Information

Now Mr. Dunbar, who teaches at Oxford, has taken the argument a step further in work yet to be published, by correlating the size of a specific part of an individual's brain with the size of that individual's social network.

WSJ: The Social Network and the Dunbar Number | Mind & Matter