The vundu is the largest true freshwater fish in Southern Africa, reaching up to 1.5 m in length and 55 kg in weight. It can be found in the Zambezi and Kafue rivers around Nsofu. The vundu is generally uncommon, but it is not considered threatened despite having declined locally. Most active at night, it feeds on any available food, including invertebrates and insects when small, then fish and other small vertebrates when large. It scavenges off large carcasses and offal from riverside villages. It can live for 12 or more years. The vundu catfish can survive out of water for extensive periods of time.