Biodiversity encompasses the vast array of living organisms and their interactions. Scientists study how various species adapt, or struggle to adapt, to environmental changes. Understanding the importance of biodiversity is vital for promoting sustainable development, as it influences our culture, society, and economy. This science story includes videos and activities that link to each other. Videos in this lesson plan introduce students to scientists, demonstrate how students can participate in citizen science, and provide background knowledge for the activities. We suggest watching the videos and choosing the activities that best suit your class or adapting them to suit your class.