The marsh deer (Blastocerus dichotomus), known as Cervo-do-Pantanal in Brazil, is the largest deer species in South America. It inhabits marshes, wetlands, and flooded grasslands throughout the Pantanal and other South American wetlands.
Marsh deer are herbivores, feeding mainly on aquatic plants and grasses. They are well adapted to seasonal floods and are often seen wading through shallow waters. Usually solitary or in small groups, these deer play a crucial role in maintaining wetland vegetation and supporting ecosystem balance.
Habitat loss and hunting have made the marsh deer vulnerable, making its conservation essential to preserve the Pantanal’s biodiversity.
Characteristics of the Marsh Deer
Scientific Name: Blastocerus dichotomus
Size: 1.2–1.4 meters (shoulder height)
Weight: 90–150 kg (198–330 lbs)
Lifespan: 10–12 years in the wild
Habitat: Marshes, wetlands, flooded grasslands (Pantanal, Brazil)
Diet: Herbivorous (grasses, aquatic plants)
Behavior: Solitary or small groups, mostly crepuscular
Distinct Feature: Long legs adapted for walking in flooded areas
Ecological Role: Maintains vegetation balance and supports wetland ecosystems.