Olive Grass Snake
Psammophis mossambicus
A large, fast, olive-colored African sand snake often seen actively hunting through grassland by day, closely related to other Psammophis species.
- Venomous?
- Mildly venomous
- Adult length
- 1.2-2.0 m (4-6.6 ft)
- Range
- Southern and eastern Africa
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Overview
The olive grass snake is a large, agile member of the African sand snake genus Psammophis, well known throughout southern and eastern Africa for its speed and bold daytime hunting behavior. It is among the larger species in its genus.
It is mildly venomous via rear fangs, used mainly to subdue prey, and while a bite may cause localized discomfort or swelling, it is not considered a serious threat to human health.
How to identify it
- Olive, olive-brown, or grayish-green dorsal coloration, often with faint striping along the body
- Long, slender, whip-like body with smooth scales
- Large eyes with round pupils, reflecting its visually oriented, active hunting style
- Head only slightly wider than the neck
- Adults commonly reach 1.2-2 m, among the larger sand snakes
Its large size, olive coloration, and fast, visually-directed movement across open grassland distinguish it from smaller Psammophis relatives.
Habitat & range
Inhabits grassland, savanna, riverine vegetation, and marshy edges across much of southern and eastern Africa. Often found near water sources and in areas with dense grass cover.
Behavior, diet & reproduction
Diurnal and highly active, using excellent eyesight to actively pursue prey including frogs, lizards, small mammals, and birds. Known for its speed and alertness when threatened, often fleeing rapidly rather than confronting danger. Reproduction is oviparous, with females laying clutches of roughly 6-20 eggs.
Frequently asked questions
Is the olive grass snake dangerous?
It is mildly venomous with rear fangs but is not considered dangerous to humans.
How big does the olive grass snake get?
It is one of the larger sand snakes, with adults commonly reaching 1.2 to 2 meters.
Where is the olive grass snake found?
It occurs across southern and eastern Africa, often near grassland and water sources.
What does the olive grass snake eat?
It preys on frogs, lizards, small mammals, and birds, hunting actively by day.
Olive Grass Snake guides
In-depth guides for identifying and understanding Olive Grass Snake.
