The Indian muntjac (Muntiacus muntjak), widely known as the barking deer, is a small, primitive, and solitary deer species native to the dense forests of Sri Lanka. Shy and highly secretive, it acts as a crucial link in the forest food web, particularly as a vital prey item for the island's apex predators.
An fascinating fact about the barking deer is its evolutionary age and unique physical defenses. Muntjacs are among the oldest known deer species in the world, with fossil records tracking back millions of years. Because of their ancient lineage, adult males carry a combination of dual weapons: short, simple antlers and long, razor-sharp, tusk-like upper canine teeth that protrude downward out of their lips. When competing with rival males or defending against smaller threats, they rely far more on slashing with these sharp canine tusks than using their antlers.