Mammals
Sambar Deer
Rusa unicolor · also called sambar
Wallowing in a shallow forest pool to beat the heat, a sambar deer shows off the size that makes it one of the largest deer species in Asia, a shaggy giant that also happens to be one of the tiger’s most important sources of food.
Overview
The sambar deer, Rusa unicolor, is one of the largest deer species in Asia, native to forest and wetland habitat across South and Southeast Asia. Its shaggy dark coat, frequent mud and water wallowing, and critical importance as tiger prey make it one of the most ecologically significant large herbivores found anywhere across its range.
A giant that keeps the tiger fed
Few prey species carry as much ecological weight as the sambar deer, whose large size and wide availability across Asian forests make it one of the most consistently relied-upon food sources for tigers throughout much of their range.
Status
Vulnerable, having declined in parts of its range due to habitat loss and hunting despite remaining widespread across South and Southeast Asia.
Sambar Deer: common questions
Why does the sambar deer wallow in mud?
This species frequently wallows in mud and shallow water, a behaviour that helps regulate body temperature in warm climates and may also help deter biting insects from settling on its coat.
How big is the sambar deer compared to other Asian deer?
This species is one of the largest deer found in Asia, considerably bigger than smaller relatives such as the chital that often share the same forest habitat.
Is the sambar deer important to tigers?
Yes, this species is an important prey species for tigers across much of its range, forming a significant part of the big cat's diet in many forests across South and Southeast Asia.
Why is the sambar deer considered Vulnerable?
This species has declined in parts of its range due to habitat loss and hunting, pressures that have reduced local populations despite the species remaining widespread overall across Asia.