Conservation biology is the study of the conservation of nature and of Earth's biodiversity with the aim of protecting species, their habitats, and ecosystems from excessive rates of extinction and the erosion of biotic interactions. It is an interdisciplinary subject drawing on natural and social sciences, and the practice of natural resource management/A wildlife biologist studies animals and their behavior along with the role each animal plays in its natural habitat. The duties of a wildlife biologist can include: developing and conducting experiments/studies on animals in their natural habitats, studying the characteristics of animals such as their interaction with different species, their reproductive and movement patterns, the dynamic with in a population, and the transmission of diseases. Wildlife biologists can also play important roles in managing and monitoring population dynamics to preserve certain species and/or environments.They observe how animals interact with one another as well as how they interact with humans. Some wildlife biologists study the impacts of human interference on an ecosystem. Wildlife biologists can work with endangered species, advocate for preservation of wildlife, resolve issues pertaining to wildlife, and manage animal populations.