Bitis arietans, commonly known as the puff adder, is a venomous viper species found in savannas and grasslands across sub-Saharan Africa. It is known for its stout body, distinctive chevron pattern, and ability to inflate its body when threatened. The puff adder is an ambush predator, often remaining motionless to ambush prey.

Bitis arietans, commonly known as the puff adder, is native to sub-Saharan Africa and parts of the Arabian Peninsula. It is widely distributed across the African continent, including countries such as South Africa, Kenya, Nigeria, and Uganda, as well as Yemen and southern parts of the Arabian Peninsula.

The puff adder inhabits a range of environmental conditions, primarily favoring savannahs, grasslands, and open woodlands. It can also be found in rocky areas and sometimes in agricultural fields. The species is adaptable to various climates but thrives in regions with moderate to warm temperatures.

As a terrestrial viper, Bitis arietans occupies a niche as an ambush predator. It relies on its cryptic coloration to blend into its surroundings, lying in wait for passing prey such as small mammals, birds, and amphibians. The puff adder's ability to adapt to different habitats allows it to exploit a variety of prey resources across its range.