Neotropical Rattlesnake
Crotalus durissus • Order: Squamata, Suborder: Serpentes, Family: Viperidae, Subfamily: Crotalinae, Genus: Crotalus, Species: Crotalus durissus
Found widely across South America, including countries such as Brazil, Argentina, Colombia, Venezuela, and Paraguay, inhabiting arid and semi-arid regions as well as open savannas.
Look up Neotropical Rattlesnake in the Snake Encyclopedia →Family
Order: Squamata, Suborder: Serpentes, Family: Viperidae, Subfamily: Crotalinae, Genus: Crotalus, Species: Crotalus durissus
Conservation
Least Concern according to the IUCN Red List, though local populations face pressures from habitat fragmentation and direct persecution.
Physical Description
Displays a distinct pattern of dark crossbands or diamond-like blotches along the back. The body is moderately stout with keeled scales. The head is distinct from the neck, though head details are partially obscured in this perspective.
Size & Dimensions
Specimens typically range from 100 cm to 150 cm in total length, with larger individuals exceeding 160 cm.
Habitat
Typically occupies dry tropical forests, savannas, scrublands, and open rocky or sandy areas at low to moderate elevations.
Diet & Feeding
Preys primarily on small mammals such as rodents, using an ambush hunting strategy.
Reproduction
Viviparous species, giving birth to live young. Females typically produce litters ranging from 5 to 20 neonates during the warmer months.
Conservation Status
Least Concern according to the IUCN Red List, though local populations face pressures from habitat fragmentation and direct persecution.
Cultural Significance
Plays an important ecological role in controlling rodent populations within its native range, and holds significant presence in regional folklore.
Notable Features
Features a specialized tail appendage (rattle) used for acoustic warning when threatened, a common evolutionary trait among rattlesnakes.