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A school of Death Valley pupfish, seen in Salt Creek in 2019. This species is known from only two locations in Death Valley: Salt Creek (subspecies salinus) at about 49 m (161 ft) below sea level, and Cottonball Marsh (subspecies milleri), at about 80 m (260 ft) below sea level. [1]
The Death Valley pupfish live at the lowest elevations in Death Valley, where summer temperatures can reach 130 °F (54 °C). [ 2 ] The Devil's Hole pupfish is found only in a single spring-fed limestone cavern in Ash Meadows , California, and at 23 square yards (19 m 2 ) has the smallest known range of any vertebrate species.
Badwater Basin is an endorheic basin in Death Valley National Park, Death Valley, Inyo County, California, noted as the lowest point in North America and the United States, with a depth of 282 ft (86 m) below sea level. [1] [2] Mount Whitney, the highest point in the contiguous United States, is only 84.6 miles (136 km) to the northwest. [3]
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 [3] and the water is a constant temperature of 33 °C (91 °F). [4]
Moving in water by ciliary motion, eating food by engulfment, reproducing by fission or budding, placozoans are described as "the simplest animals on Earth." [ 6 ] Structural and molecular analyses have supported them as among the most basal animals, [ 7 ] [ 8 ] thus, constituting a primitive metazoan phylum.
Cnidarians are the simplest animals in which the cells are organised into tissues. [33] The starlet sea anemone is used as a model organism in research. [ 34 ] It is easy to care for in the laboratory and a protocol has been developed which can yield large numbers of embryos on a daily basis. [ 35 ]
A historic wooden tower was inadvertently felled by a traveler who used it to winch a vehicle stuck in mud in California's Death Valley National Park, federal officials said.
Batomorphi is a clade of cartilaginous fishes, commonly known as rays, this taxon is also known as the superorder Batoidea, but the 5th edition of Fishes of the World classifies it as the division Batomorphi. [2] They and their close relatives, the sharks, compose the subclass Elasmobranchii. Rays are the largest group of cartilaginous fishes ...