One of the mysteries of the English language finally explained.
An elongated freshwater fish with one or two sacs which function as lungs, enabling it to breathe air. It lives in poorly oxygenated water and can estivate in mud for long periods to survive drought.
Subclass Dipnoi: families Ceratodontidae (one Australian species), Lepidosirenidae (one South American species), and Protopteridae (four African species)
- ‘Tetrapods, whose closest living relatives are lungfish, have two main groups: amphibians and amniotes.’
- ‘The fins are very flexible and potentially useful for supporting the body on land, as in lungfish and tetrapods.’
- ‘Compare with the lungfish, another example of living fossil.’
- ‘Freshwater types continued to flourish, including the rhizodonts and lungfish.’
- ‘Among vertebrates, only the cartilaginous fishes, lungfishes and amphibians (especially salamanders) possess exceptionally large C-values.’
- ‘The lungfish use lungs as accessory breathing organs, and during droughts modern forms can survive for several years in burrows.’
- ‘A third group of fishes, the lungfishes or fishes that can breathe on land, survive today as freshwater fishes in Queensland.’
- ‘Tetrapods are part of a larger groups called Sarcopterygii, which also includes several groups of lobe-finned fish, such as lungfish and the coelacanth.’
- ‘Today lungs are found not only in land vertebrates but also in a few obscure fish lineages, such as gar, bichir, and lungfish.’
- ‘The ray-fins include the thousands of familiar sport and commercial fishes, but of the lobe-fins, only eight species survive, six lungfishes and two coelacanths.’
- ‘The data set included sequences of genes from mammals, birds, amphibians, coelacanths, lungfishes, ray-finned fishes, and cartilaginous fishes.’
- ‘Although the molecules function at high oxygen concentrations in sharks, lungfishes, and even tetrapods, they are most efficient at releasing oxygen in those conditions in codfish and other modern fish.’
- ‘This looks a little like a lungfish and is half fish, half eel shaped.’
- ‘But in coelacanths, lungfishes and some primitive sharks, the transformation of notochord into a segmented bony vertebral column does not take place.’
- ‘He grumbled, rapidly crawling ahead at a rate I'd never have expected to see in a land-adapted fish, be it a walking catfish or a lungfish.’
- ‘Tiktaalik would have breathed like a lungfish, says Clack, senior assistant curator at Cambridge's University Museum of Zoology.’
- ‘These include lungfish, Arapaima, tambaqui, piranha, Hydrolycus, and goliath and pirarara catfishes.’
- ‘Long shots for the title include caviar-producing sturgeon, goliath Amazon catfish, giant lungfish, razor-toothed gars, massive cods, and Mongolian salmon.’
- ‘There are five hypaxial muscles in both the African and South American lungfishes.’
- ‘In the handful of cases currently available for animals, namely lungfishes, amphibians, and conodonts, long-term stasis was found to be the rule.’
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