Common night adder

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Common night adder
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Viperidae
Subfamily: Causinae
Genus: Causus
Species: C. Rhombeatus

The common night adder is a species of venomous vipers found in Sub-Saharan Africa. There are currently no subspecies recognized.

Description[change | change source]

The common night adder can grow up to around 60 centimeters (24 in) long, making it the longest species of the genus Causus. The longest ever recorded was a male found in eastern Zimbabwe which was 93 centimeters (around 37 in) long. They are usually olive green, brown, or grayish-brown in color with black rhombic-shaped blotches, but not all have blotches on them.

Common Names[change | change source]

The common night adder is also called the "rhombic night adder", the "demon night adder", the "Cape Viper", and the "African night adder".

Where they live[change | change source]

The common night adder is found in the savannas of Sub-Saharan Africa, from Nigeria, east to Sudan, Ethiopia, Somalia and Kenya, south to Tanzania, Uganda, Rwanda, Burundi, Democratic Republic of Congo, Angola, Zambia, Malawi, Zimbabwe, northern Botswana, Mozambique, Swaziland, and eastern South Africa.

Behavior[change | change source]

The common night adder is a fairly fast species of snake; it can move at the speed of 3.312 km per hour. They are usually found on the ground, but they can climb trees and are okay swimmers. They are mainly nocturnal, but some have been seen basking in the early morning or late afternoon. When disturbed they coil up, inflate their body (which makes the black blotches on them stand out), and start hissing loudly. Common night adders are oviparous, meaning that they lay eggs, while other vipers are usually viviparous, meaning that they give live birth. Females lay around 2 dozen eggs at a time, which take around 4 months to hatch. Once hatched, the young are 10-12.5 cm long and eat small frogs and toads.

Feeding[change | change source]

Their diet is made up of mainly frogs and toads, and sometimes small mammals like mice and rats.