"lungfish" 的定义和意义

What is a "lungfish"?

A lungfish is a unique and ancient freshwater fish that has been around for millions of years. They possess a remarkable adaptation called a lung, which enables them to breathe air. Found in various parts of the world, including Africa, South America, and Australia, lungfish have elongated bodies and paired fins that aid in swimming. They can survive in oxygen-deprived environments by gulping air into their lungs. Lungfish are also capable of aestivation, a dormant state during droughts, where they burrow into the mud and can survive for extended periods until favorable conditions return. With their fascinating lung adaptation and ability to endure challenging environments, lungfish represent an extraordinary example of nature's resilience and adaptation.