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Danionella dracula, minnow
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Danionella dracula, minnow
SEM image of the Danionella dracula. This tiny 17mm fish has evolved many unique and unusual characteristics, the most spectacular of which are jaw modifications that resemble true teeth and protrude through the skin
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Media ID 8583949
© Mary Evans Picture Library 2015 - https://copyrighthub.org/s0/hub1/creation/maryevans/MaryEvansPictureID/10716028
Actinopterygii Bony Fish Cyprinid Cyprinidae Cypriniform Cypriniformes Electron Micrograph Fishes Micrograph Microscope Image Minnow Osteichthyes Ray Finned Fish Scanning Electron Micrograph Scanning Electron Microscope Scanning Electron Microscope Image Sem Image Teeth Tiny Tooth
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In the intriguing world of underwater biodiversity, the Danionella dracula, a minnow measuring just 17mm in length, stands out as a remarkable example of evolutionary adaptation. This tiny fish, belonging to the Cyprinidae family and Cypriniformes order, has captivated scientists with its unique and unusual anatomical features, most notably its jaw modifications that bear a striking resemblance to true teeth and protrude through the skin. The Scanning Electron Microscope (SEM) image of the Danionella dracula's jaw reveals a fascinating anatomy. The image showcases the fish's bony jaw apparatus, with the teeth-like structures, known as odontodes, being the most prominent feature. These odontodes are not used for chewing food but instead serve a protective function. They are thought to help the fish navigate through complex environments and defend against predators. The Danionella dracula's jaw modifications are not the only intriguing aspect of its anatomy. This minnow is also characterized by its translucent body, which allows researchers to observe its internal organs and skeletal structure. The fish's small size and unique features make it an essential subject for scientific study, contributing valuable insights into the evolution of bony fish (Actinopterygii), ray-finned fish (Osteichthyes), and the larger Cyprinid family. The SEM image of the Danionella dracula offers a mesmerizing glimpse into the microscopic world of this tiny, yet fascinating, fish. Its jaw modifications and other distinctive features serve as a testament to the wonders of nature and the endless intrigue of the aquatic realm.
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