Learn All About Fish With Lungs: Lungfish! - My Animals
West African Lungfish | San Diego Zoo Animals & Plants
Lung Fish and its Types (With Diagram) | Chordata | Zoology
Australian Lungfish - The Australian Museum
Lungfishes | PRIMITIVE FISHES
Dipnoi: Geographical Distribution and Habitat | Chordata | Zoology
Evolution of fish lungs
Fish gill - Wikipedia
Surprising new research: We're more like prim | EurekAlert!
Lungfish | fish | Britannica
Do fish have lungs? (With helpful infographics) - The Pets and Love
Marine Mammal vs Fish | WORLDkids
Introduction to the Dipnoi
Spiracular air breathing in polypterid fishes and its implications for aerial respiration in stem tetrapods | Nature Communications
Lungs found in mysterious deep-sea fish - CSMonitor.com
The Ancient Fish-dragons of Africa | Humming Dinosaurs and Nature's Other Small Wonders
Evolution of fish lungs
Ancient Queensland fish 'close living relative' to humans, scientists believe - ABC News
Lungfishes | PRIMITIVE FISHES
Lungfish - Wikipedia
