Nyavada (Chirungu: Scorpion) kana chinyaridi uye rize. Zvinyavada zvese zvine neurotoxic uturu uye iyo gland yehuturu iri kumucheto kwemuswe. Zvinyavada zvinoratidza mutsauko mushoma wepamasikirwo azvo, kunyange hazvo zvinyavadarume kazhinji zviri zvitete uye zvine miswe mirefu kupfuura zvinyavadakadzi. Hofori pakati pezvinyavada dzinosanganisira imwe yeruvara tema inonzi: Nyavada Madzishe kana "emperor scorpion" muChirungu (Pandinus imperator), Ndeyerudzi rwemu Afrika rwunowanikwa muGini (Guinea), mwiri yayo yakareba kusvika 18 cm (7 inches) uye inorema magiramu 60 (anopfuura ma2 ounces). Pamusoro pezvo, nyavada yakarebesa paRinopasi rese inonzi: Nyavada yedombo (Hadogenes troglodytes) Inowanikwa kuSouth Afrika; nyavadakadzi yerudzi iyi yakareba kusvika masentimita makumi maviri nemasere (25cm; 8.3 inches). Mu Zimbabwe kunowanikwa: Hormuridae (zvinyavada zvematombo nemiti) Scorpionidae (zvinyava zviri burrowing) Buthidae (zvinyavada zvakakora) Ma Hadogenes Ma Opistacanthus Opistophthalmus Ma Hottentotta (anowanzo wanikwa) Hottentotta trilineatus (eastern nomad scorpion), Uroplectes flavoviridis (the yellow lesser thick-tail scorpion) U. planimanus (orange lesser-tailed) U. vittatus ( stripped lesser thick-tailed) is found under the bark of trees.