Search results
Results from the WOW.Com Content Network
The South American lungfish (Lepidosiren paradoxa), also known as the American mud-fish [6] and scaly salamanderfish, [7] is the single species of lungfish found in swamps and slow-moving waters of the Amazon, Paraguay, and lower Paraná River basins in South America. [8]
The South American lungfish is an extraordinary creature - in some sense, a living fossil. ... Scientists have now sequenced its genome, finding it to be about 30 times the size of the human ...
Researchers found that the South American lungfish has 90 billion base pairs in its genetic code thanks to “jumping genes,” which have continued to expand the length of the fish’s sequence ...
South American lungfish. The South American lungfish, Lepidosiren paradoxa, is the single species of lungfish found in swamps and slow-moving waters of the Amazon, Paraguay, and lower Paraná River basins in South America. Notable as an obligate air-breather, it is the sole member of its family native to the Americas.
The arapaima, pirarucu, or paiche is any large species of bonytongue in the genus Arapaima native to the Amazon and Essequibo basins of South America. Arapaima is the type genus of the subfamily Arapaiminae within the family Osteoglossidae. [1] [2] [3] They are among the world's largest freshwater fish, reaching as much as 3 m (9.8 ft) in ...
All members of the order are obligatory air-breathers; only the Australian lungfish has functioning gills when adult; members of the Lepidosirenidae have gills only when they are larvae. [5] The South American and African lungfish also all have generally small scales and two lungs as opposed to the Australian lungfish's single lung. [5]
The lungfish can grow to a length of about 150 cm (4.9 ft), and a weight of 43 kg (95 lb). [12] It is commonly found to be about 100 cm (3.3 ft) and 20 kg (44 lb) on average. [9] Both sexes follow similar growth patterns, although the females grow to a slightly larger size. [15] They are covered in slime when taken from the water. [12]
South America's 20 genera of nonhuman primates compares with 6 in Central America, 15 in Madagascar, 23 in Africa and 19 in Asia. All South American monkeys are believed to be descended from ancestors that rafted over from Africa about 25 million years ago in a single dispersal event. Suborder: Haplorrhini. Infraorder: Simiiformes