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A example size comparison of a whale shark and a human. It is always beneficial to have a picture that communicates a sense of scale. This can be achieved by placing standard sized physical objects next to the fish (human hand or body, tape measure, etc.), before taking the photo. Sometimes the background scenery will already do the job.
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Studies so far have shown the sequence and the gene order are more similar between human and elephant shark genomes than between human and teleost fish genomes (pufferfish and zebrafish), though humans are more closely related to teleost fishes than to the Australian ghostshark. The Elephant Shark Genome Project was launched with the aim to ...
Whale shark: The largest fish is the whale shark. It is a slow-moving, filter-feeding shark with a maximum published length of 20 m (66 ft) and a maximum weight of 34 tonnes (33 long tons; 37 short tons). Whale sharks can live up to 70 years [63] and are a vulnerable fish. Ocean sunfish: The ocean sunfish is the heaviest bony fish. It can weigh ...
The whale shark and basking shark exceed all other fish by a considerable margin in weight and length. Fish are a paraphyletic group that describes aquatic vertebrates while excluding tetrapods, and the bony fish that often represent the group are more closely related to cetaceans such as whales, than to the cartilaginous fish such as sharks ...
Sharks are much more sensitive to electric fields than electroreceptive freshwater fish, and indeed than any other animal, with a threshold of sensitivity as low as 5 nV/cm. The collagen jelly, a hydrogel , that fills the ampullae canals has one of the highest proton conductivity capabilities of any biological material.
A Whale shark, the world's largest fish, is classified as Vulnerable. Uncropped original color enhanced crop (version 2) Reason Very Beautiful picture that appears in three articles. Articles this image appears in. Whale shark; Fish; List of red sea sharks; Public Aquarium; Georgia Aquarium; Creator User:Zac Wolf (original), User:Stefan (added ...
Most fish species seem to have a fixed pupil size, but elasmobranches (like sharks and rays) have a muscular iris which allows pupil diameter to be adjusted. Pupil shape varies, and may be e.g. circular or slit-like. [5] Lenses are normally spherical but can be slightly elliptical in some species.