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The eating of scales and the skin surrounding the scales provides protein rich nutrients that may not be available elsewhere in the niche. [71] Fish jaws normally show bilateral symmetry. An exception occurs with the scale-eating cichlid Perissodus microlepis. The jaws of this fish occur in two distinct morphological forms. One morph has its ...
The Ja'fari jurisprudence followed by most Shia Muslims forbids all species of fish that do not have scales, as well as all shell fish species except prawns. [55] Many tribes of the Southwestern United States, including the Navajo, Apache, and Zuñi, have a taboo against fish and other aquatic animals, including waterfowl. [56]
The bucktooth tetra eats scales off other fishes. Lepidophagy is a specialised feeding behaviour in fish that involves eating the scales of other fish. [1] Lepidophagy is widespread, having evolved independently in at least five freshwater families and seven marine families. [2]
In zoology, a scale (Ancient Greek: λεπίς, romanized: lepís; Latin: squāma) is a small rigid plate that grows out of an animal's skin to provide protection. In lepidopterans ( butterflies and moths ), scales are plates on the surface of the insect wing , and provide coloration.
They only eat meat of a herbivore with split hooves and birds without a crop and without webbed feet; they also do not eat shellfish of any kind, and they only eat fish with scales. Any other animal is considered unclean and not suitable for eating. All vegetables, fruits and nuts are allowed. [23]
Scientifically, there are five different types of fish scales: placoid, cosmoid, ganoid, ctenoid and cycloid. The majority of kosher fish exhibit the latter two forms, ctenoid or cycloid, but the bowfin (Amia calva) is an example of a fish with ganoid scales that is deemed kosher. As such, kosher status cannot be said to follow the rules of ...
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Piranhas will often scavenge, [9] and some species such as Serrasalmus elongatus are specialized scale-eaters, feeding primarily on scales and fins of other fish. [3] Scale- and fin-eating is more widespread among juvenile and sub-adult piranhas. [20] Piranhas lay their eggs in pits dug during the breeding season and swim around to protect them.