White-tailed deer (Odocoileus virginianus) are the largest herbivore found at Indiana Dunes National Park. Deer live throughout the park and keen-eyed visitors may spot them any time of day. A low number of predators and the extirpation of others, have contributed to an over population of deer. An overabundance can become a negative influence on the ecosystem. Sensitive vegetation, deer health, and other wildlife are at risk when a population is left unchecked.