Every ecosystem is made up of thousands of unique species that meet others' needs in the form of food, protection, and other uses, which means that allowing even a small number of species to go extinct can have an impact on a broader range of animals' ability to thrive.
Most animals are not as independent as we often think they are, and biodiversity plays a key role in building an environment in which each species has what they need to survive. Every ecosystem is made up of thousands of unique species that meet others' needs in the form of food, protection, and other uses, which means that allowing even a small number of species to go extinct can have an impact on a broader range of animals' ability to thrive.