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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.
The surface and cave forms of the Mexican tetra have proven powerful subjects for scientists studying evolution. [26] When the surface-dwelling ancestors of current cave populations entered the subterranean environment, the change in ecological conditions rendered their phenotype—which included many biological functions dependent on the presence of light—subject to natural selection and ...
Prehistoric fish are early fish that are known only from fossil records. They are the earliest known vertebrates, and include the first and extinct fish that lived through the Cambrian to the Quaternary. The study of prehistoric fish is called paleoichthyology. A few living forms, such as the coelacanth are also referred to as prehistoric fish ...
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 ...
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 ...
About 700 feet beneath southeast New Mexico is the Carlsbad Caverns, known for enormous underground rock formations and thousands of stalactites and stalagmites that wowed visitors since they were ...
Life restoration of a herd of Mammuthus columbi, or Columbian mammoths. The extent of the fur depicted is hypothetical. Charles R. Knight (1909). Life restoration of a herd of Neohipparion. Robert Bruce Horsfall (1913). Restoration of a herd of alarmed Miocene-Pleistocene peccaries of the genus Platygonus.
The cave was discovered in 1936. [5] The site was excavated in the 1930s and 1940s by Frank Hibben while at the University of New Mexico. [6] [7] He claimed to have found the oldest known evidence of humans in the new world, and found a new culture, whose artifacts resembled those of western Europeans, strongly suggesting the first inhabitants of the Americas were Europeans and not far eastern ...