Rusa (genus)

The genus Rusa comprises a group of deer native to Southeast Asia and the surrounding islands. They are characterized by their relatively large size, coarse reddish-brown coats (which can vary seasonally and geographically), and three-tined antlers on the males.

Rusa deer are typically found in tropical and subtropical forests, grasslands, and savannas. They are herbivores, feeding on a variety of vegetation, including grasses, leaves, and fruits.

Several species are included within the Rusa genus, although their exact classification and relationships have been subject to taxonomic revisions. Common species include the Sambar deer (Rusa unicolor), the Javan rusa (Rusa timorensis), and the Philippine deer (Rusa marianna).

Many Rusa species face threats from habitat loss, hunting, and competition with introduced species. Conservation efforts are underway to protect these deer and their habitats. They are also sometimes raised in deer farms for venison production.

The social behavior of Rusa deer varies between species. Some are solitary or live in small groups, while others form larger herds. The males often compete for dominance during the breeding season, engaging in antler clashes.