Climate change is altering habitats worldwide, putting pressure on many animal species. In the Amazon rainforest, scientists investigate how reptiles and amphibians respond to rising temperatures and what this could mean for biodiversity there. Meanwhile in Germany, parasitologists are studying the effect of climate change on ticks. These hardy parasites are spreading to new areas and can carry pathogens such as TBE and Lyme disease. Both lots of research provide important insights into how animals respond to changing environmental conditions and what this can mean for people and the rest of the natural world.