A volcanic eruption in northern Queensland more than 199,000 years ago spewed lava streams 23 kilometres long creating the Undara lava tubes. Researchers are drawn to these tubes to discover why the population of cave creatures is so high.
Please read the following before uploading
Do not upload anything which you do not own or are fully licensed to upload. The images should not contain any sexually explicit content, race hatred material or other offensive symbols or images. Remember: Abuse of the TV.com image system may result in you being banned from uploading images or from the entire site – so, play nice and respect the rules!