Dolphins are very similar to us humans, although they have evolved and live in a completely different environment. They are extremely intelligent, have complex social structures with long-lasting, sometimes even lifelong friendships – certain populations even have a material culture. Dolphins in Shark Bay, Western Australia, use tools to forage. This allows some dolphins to access feeding grounds that are denied to others. Long-term research on Indo-Pacific bottlenose dolphins in Shark Bay has led to these and many other amazing findings about these inventive animals. PhD student Svenja Marfurt, who has been working for the Shark Bay Dolphin Research project for several years, reports on her research.