Have you ever wondered what Aboriginal Australian culture looked like thousands of years ago? Thanks to the end of the last ice age and rising sea levels, so much of what was once dry land is now underwater. But that doesn’t stop archaeologists from discovering and learning from artefacts found under the sea! This episode, Kate and Matt are joined by archaeologist Patrick Morrison to chat about an ancient aboriginal archaeological site discovered at Murujuga, Western Australia, as part of the ARC Deep History of Sea Country project. Patrick tells us all about how researchers go about finding these underwater archaeological sites, and the amazing stories they can tell us about the past. We also tackle a listener question about bruises: why do they change colour?If you loved what Patrick had to say you can find him on twitter (https://twitter.com/padmorrison) and Instagram (https://www.instagram.com/iampatricksego/). As always, you can follow Curiosity Killed the Rat on twitter (https://twitter.com/CuriosityRat), Insta (https://www.instagram.com/curiosityrat/), and Facebook (https://www.facebook.com/curiosityrat/), and email in your listener questions to [email protected]:https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0233912https://theconversation.com/in-a-first-discovery-of-its-kind-researchers-have-uncovered-an-ancient-aboriginal-archaeological-site-preserved-on-the-seabed-138108https://www.abc.net.au/news/2020-07-02/aboriginal-underwater-site-discovered-off-burrup-peninsula/12391858https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1939-3938.2009.01028.xhttps://www.spiedigitallibrary.org/conference-proceedings-of-spie/5312/1/Optical-classification-of-bruises/10.1117/12.538045.shorthttps://www.spiedigitallibrary.org/conference-proceedings-of-spie/6078/1/Hyperspectral-imaging-of-bruised-skin/10.1117/12.646557.short?SSO=1https://medlineplus.gov/bruises.html