The taxonomic class name for lungfish and related fishes characterized by having two lungs and other primitive features linking them to land vertebrates.
From Greek 'diplos' (double) and 'pneuma' (air), Latinized as the scientific class name Dipnoi for the double-lunged fish group.
Dipnoi as a class represents one of the most thrilling chapters in evolutionary biology—these 'living fossils' show us exactly what our fishy ancestors were like before conquering land.
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