Having no tail, or lacking a tail; used to describe frogs, toads, and other tailless amphibians.
From Greek 'a-' (without) plus 'oura' (tail) with the adjectival suffix '-ous', literally meaning 'without-tail-like'.
Most vertebrates have tails, so anurous amphibians are actually evolutionary rebels—they ditched tails entirely because hopping and jumping work better than wiggling when you're hunting insects and need quick getaways.
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