Mammals
Greater Cane Rat
Thryonomys swinderianus · also called grasscutter
Cutting down a stem of wild grass near a wetland’s edge, a greater cane rat feeds much as its farmed relatives do across West Africa, where this large, semi-aquatic rodent has become an important source of both income and protein under the name grasscutter.
Overview
The greater cane rat, Thryonomys swinderianus, is one of the largest rodents native to Africa, found across wetland and grassland habitat spanning much of sub-Saharan Africa. Its substantial size, capacity to damage cultivated sugarcane fields, and widespread importance as a farmed meat animal under the name grasscutter make it one of the more economically significant rodents found anywhere on the African continent.
A pest in the field, a resource on the farm
Wild greater cane rats can devastate a sugarcane crop overnight, yet the same species has become a valuable farmed commodity across West Africa, its meat supporting rural livelihoods in a way few other wild rodent species can match.
Status
Least Concern, remaining widespread across suitable wetland and grassland habitat throughout sub-Saharan Africa, supplemented by extensive farming for meat.
Greater Cane Rat: common questions
Why is the greater cane rat farmed so widely in West Africa?
This species is widely farmed under the name grasscutter, representing an important and growing source of protein and income in many rural West African communities, with demand for its meat supporting an established domestic farming industry alongside wild populations.
Why is the greater cane rat considered an agricultural pest?
This species can cause significant damage to cultivated sugarcane and other crops in the wild, cutting down stems close to ground level for food, a habit that directly inspired both its common name and its reputation as a nuisance in farming areas.
How big does the greater cane rat get?
This species is among the largest rodents native to Africa, with a heavily built body considerably bigger than most other grassland-dwelling rodent species, giving it substantial value both as a wild resource and as a farmed meat animal.
Does the greater cane rat spend time in water?
Yes, this species is a capable swimmer and is often found close to wetland and marsh habitat, using water both to escape predators and to access the marsh vegetation that forms part of its natural diet.