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A new species of fish has been discovered in the Amazon: a piranha relative with humanlike teeth. The eye-catcher was named after a “Lord of the Rings” villain.
Although most fish species have probably been discovered and described, about 250 new ones are still discovered every year. According to FishBase about 34,800 species of fish had been described as of February 2022, [5] which is more than the combined total of all other vertebrate species: mammals, amphibians, reptiles and birds.
However, researchers believe that members of this newly described species are likely present in deeper waters since C. finifenmaa often inhabit loose coral bottom waters. This new species belongs to the Cirrhilabrus jordani species complex, which is a group of fairy wrasses that form a clade within the Indian Ocean. Species belonging to this ...
The evolution of fish began about 530 million years ago during the Cambrian explosion. It was during this time that the early chordates developed the skull and the vertebral column, leading to the first craniates and vertebrates. The first fish lineages belong to the Agnatha, or jawless fish. Early examples include Haikouichthys.
The team collected almost 1,800 samples from depths as far down as 3 miles (4,800 meters), finding species of fish, squid, mollusk and coral that they believe are new to science.
The earliest fossils of coelacanths were discovered in the 19th century. Coelacanths, which are related to lungfishes and tetrapods, were believed to have become extinct at the end of the Cretaceous period. [14] More closely related to tetrapods than to the ray-finned fish, coelacanths were considered transitional species between fish and ...
New species of fish are discovered with increasing frequency, and, like P. scalare and P. leopoldi, the differences may be subtle. Scientific notations describe the P. leopoldi as having 29–35 scales in a lateral row and straight predorsal contour, whereas, P. scalare is described as having 35–45 scales in a lateral row and a notched ...
Scientists found that members of the new species are smaller than their offshore common bottlenose counterparts, eat different fish and have spines adapted to navigating the tight spaces of rivers ...