The world's oldest dinosaur burrows have been discovered in Australia.
Three separate burrows have been found in all, the biggest 2m long, each built to a similar design and just big enough to hold the body of a small dinosaur.
http://news.bbc.co.uk/earth/hi/earth_news/newsid_8144000/8144199.stm
Three separate burrows have been found in all, the biggest 2m long, each built to a similar design and just big enough to hold the body of a small dinosaur.
http://news.bbc.co.uk/earth/hi/earth_news/newsid_8144000/8144199.stm