Rucervus duvaucelii, commonly known as the swamp deer or barasingha, is a species of deer found primarily in the wetlands of northern India and parts of Nepal. This deer is characterized by its long, slender legs and distinctive antlers, which have multiple tines. Swamp deer are well-adapted to their habitat, often found in marshy areas, grasslands, and riverine forests. These deer are herbivorous, primarily feeding on grasses, aquatic plants, and shrubs. They are social animals, often seen in small herds, and are known for their unique behavior of swimming in water to escape predators. Conservation efforts are crucial for their survival, as their populations are threatened by habitat loss and poaching.