I understand that you read about a "a neutrino network that would transmit directly through the Earth, for true point-to-point communication," but you obviously didn't read the paper. Here it is. http://arxiv.org/abs/1203.2847 It's a proof-of-principle. A stunning achievement, no doubt. But it's hardly a practical option for communication, "The link achieved a decoded data rate of 0.1 bits/sec with a bit error rate of 1% over a distance of 1.035 km, including 240 m of earth."

Ant colonies? WTF?