The world’s oldest dinosaur burrows have been discovered in Australia (via BBC Earth News)
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. The 106-million-year-old burrows, the first to be found outside of North America, would have been much closer to the South Pole when they were created. That supports the idea that dinosaurs living in cold, harsh climates burrowed underground to survive. The only other known dinosaur burrow was discovered in 2005 in Montana, US.
