Let's dive (did you get the pun haha) into the world of fish! These come in all shapes and sizes and are found in every (aquatic) corner of the globe, so chances are you've seen one before and you know what I'm talking about. But I'm ready to bet you might not have known that the group of animals we call "fish" is a lot more diverse than many people think! Listen to this episode to find out more about jawless blood-suckers, fishes made of the same material as our nose and ears, and a rock-looking fella that could land you a trip to the hospital.

Have you ever wanted to explore the frozen world of Antarctica? My friend Heidi and I were very lucky to visit this majestic continent on a research expedition as part of our university course, and we tell you all about it in this Special Episode. We describe how we collected data on marine mammals, sea birds, penguins, and microplastics, and how these can be applied in wider ecological contexts. We also share the most memorable moments of this incredible experience, so have a listen to find out more!

When asked "What's the difference between a vertebrate and an invertebrate?", most people don't really know what to answer. And indeed, even for biologists the lines between phyla at the limit of vertebrates are quite blurry. With groups like hemichordates (and echinoderms, ep108!) that can seem to be a little bit of both, it's tricky to pin point the difference - and to know vertebrates aren't even their own phylum! Have a listen to this episode to find out more on what 'chordata' is and how it links us to the entire animal kingdom.