The African Crested Rat is a small rodent native to the African savanna. It has a distinctive crest of fur along its back, giving it a unique appearance. It is nocturnal and feeds on fruits, seeds, and insects. It is also known for its ability to produce a
From Wikipedia
The maned rat or African crested rat is a large nocturnal, long-haired and bushy-tailed East African rodent that superficially resembles a porcupine. The world's only known poisonous rodent, the maned rat sequesters toxins from plants to fend off predators.