Beetles, comprising over 350,000 species, inhabit every ecosystem on Earth, playing crucial roles as decomposers, herbivores, predators, and pollinators. However, shifting temperatures and altered precipitation patterns disrupt their intricate relationships with plants, fungi, and other organisms. Some beetle species struggle to adapt to rapidly changing environments, thus facing habitat loss, altered phenology, and increased competition from invasive species. As climate change accelerates, understanding and mitigating its impacts on beetles are vital for preserving biodiversity and ecosystem function. This series explores the process of preserving such unique entities at the Natural History Museum in London.