Bothrops alternatus, commonly known as the Urutu, is a venomous pit viper species found in South America. It thrives in diverse habitats such as forests, grasslands, and marshlands. Notable for its cryptic coloration and striking zigzag pattern, it exhibits nocturnal hunting behaviors and delivers potent venom to subdue prey.

Bothrops alternatus, commonly known as the urutu or jararaca, is native to South America. Its geographical distribution includes parts of Argentina, Brazil, Paraguay, and Uruguay. This species is primarily found in the southeastern regions of Brazil and the northeastern parts of Argentina.

Bothrops alternatus inhabits a variety of environments, primarily favoring humid and semi-humid regions. It is commonly found in subtropical and temperate forests, grasslands, and savannas. The climate in these areas typically features moderate to high humidity, with seasonal variations in temperature ranging from mild to warm.

This species often occupies the forest floor or open areas within its range, utilizing dense foliage or fallen logs for cover. Bothrops alternatus is a terrestrial snake that plays a role in controlling rodent populations, thereby maintaining ecological balance within its habitat.