Odocoileus Virginianus is the scientific name for the white-tailed deer, a common sight in North America. There are several synonyms for Odocoileus Virginianus, including the Virginia deer, whitetail, or simply deer. These majestic creatures are known for their distinctive tails, which are brown on top and white underneath, hence the name "whitetail." They are also known for their agility and speed, able to run up to 45 miles per hour. White-tailed deer are beloved by hunters and wildlife enthusiasts alike, and are an important part of the ecosystem in which they live. No matter what you call them, Odocoileus Virginianus are a cherished part of the natural world.