Biodiversity refers to the variety of species found in a particular habitat. It is important to maintain biodiversity because the more biodiverse an ecosystem, the more resilient that ecosystem is when faced with crises like infestations, disease or drought. Ecosystems are an interdependent system; every native organism in a given ecosystem has a role to play in keeping it functional. When individual species in an ecosystem decline, the rest of the ecosystem may begin to decline, impacting other species – including humans. Protecting the wonder of our world means protecting the variety of species with which we share the planet, from the most photogenic to the most unpopular.