 We're all born curious, we all want to know how the world works. I'm Crid Fraser and I work at the Fenner School of Environment and Society at the Australian National University. I'm a biogeographer which means I study the processes that have shaped the distribution of plants and animals on Earth. Some of my early work looking at how seaweed has drifted around the ocean made us reassess our knowledge of past climate change because we found from the DNA of the seaweed that some of the islands near Antarctica had no seaweed on them at the peak of the last ice age and the only reasonable explanation for that is that they were destroyed by ice. So that research changed our idea of how much ice there was around Antarctica at the last ice age and that's the really cool thing about interdisciplinary research where you're combining biology with geology and oceanography and other fields you can start to do big picture research and see how things have changed in the past and the processes that have driven them. How plants and animals have responded to climate change in the past can tell us a lot about how they might respond in the future with this very fast climate change that we're starting to see now. I'm really motivated by the excitement of new discoveries. Every new discovery is a eureka moment where you sometimes change the way you see the world and that keeps you wanting to go on and find the next big thing.