GeologyRocks

Live Science (Original: Proceedings of the Royal Society B) reports on the discovery of a nest burrow of Oryctodromeus cubicularis, or “digging runner of the lair". The burrowing habit would allow these animals to inhabit regions of more extreme hot or cold than other dinosaurs.

There's more from the BBC: http://news.bbc.co.uk/1/hi/sci/tech/6472579.stm