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Description. The Blue Hole is a clear blue body of water with a constant 62 °F (17 °C) temperature and constant inflow of 3,000 US gallons per minute (11 m 3 /min; 2,500 imp gal/min), enough to cycle out the water every six hours. While the surface is only 80 feet (24 m) in diameter, it expands to a diameter of 130 feet (40 m) at the bottom.
The location of the state of New Mexico. Paleontology in New Mexico refers to paleontological research occurring within or conducted by people from the U.S. state of New Mexico. The fossil record of New Mexico is exceptionally complete and spans almost the entire stratigraphic column. [ 1] More than 3,300 different kinds of fossil organisms ...
Devils Hole is a geothermal pool within a limestone cavern in the Amargosa Desert in the Amargosa Valley of Nevada, east over the Amargosa Range and Funeral Mountains from Death Valley. It is at an elevation of 730 m (2,400 ft) above sea level [1] and the water is a constant temperature of 33 °C (91 °F). [2] The surface area of Devils Hole is ...
Coelacanth. Coelacanths (/ ˈsiːləkænθ / ⓘ SEE-lə-kanth) (order Coelacanthiformes) are an ancient group of lobe-finned fish (Sarcopterygii) in the class Actinistia. [2][3] As sarcopterygians, they are more closely related to lungfish and tetrapods (which includes amphibians, reptiles, birds and mammals) than to ray-finned fish.
A cenote (English: / sɪˈnoʊti / or / sɛˈnoʊteɪ /; Latin American Spanish: [seˈnote]) is a natural pit, or sinkhole, resulting when a collapse of limestone bedrock exposes groundwater. The term originated on the Yucatán Peninsula of Mexico, where the ancient Maya commonly used cenotes for water supplies, and occasionally for sacrificial ...
Cavefish or cave fish is a generic term for fresh and brackish water fish adapted to life in caves and other underground habitats. Related terms are subterranean fish, troglomorphic fish, troglobitic fish, stygobitic fish, phreatic fish, and hypogean fish.
Amblyopsidae. The Amblyopsidae are a fish family commonly referred to as cavefish, blindfish, or swampfish. They are small freshwater fish found in the dark environments of caves (underground lakes, pools, rivers and streams), springs and swamps in the eastern half of the United States. Like other troglobites, most amblyopsids exhibit ...
Mexican tetra. The Mexican tetra ( Astyanax mexicanus ), also known as the blind cave fish, blind cave characin or the blind cave tetra, is a freshwater fish in the Characidae family (tetras and relatives) of the order Characiformes. [ 4][ 5] The type species of its genus, it is native to the Nearctic realm, originating in the lower Rio Grande ...