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[2] [4] The swell shark is capable of swelling by using water or air, which is stored in the stomach until released. [2] [4] When letting air out, the swell shark makes a dog-like bark. [2] [5] Swell sharks are non-aggressive and are considered harmless to humans. [3] [2] [5] Biofluorescence of the swell shark
The Australian swellshark is harmless to humans and seldom utilised, though recently in parts of Tasmania some have begun to be marketed as a source of "flake". [ 1 ] [ 8 ] It is regarded as a nuisance by lobster fishers due to its habit of entering traps to eat the contents. [ 3 ]
Swellsharks are harmless to humans and generally of no economic value, but are susceptible to being caught as bycatch in artisanal and commercial fisheries. [4] Several species (e.g. C. umbratile and C. ventriosum ), are known to be extremely hardy, capable of surviving out of water for extended periods and adapting readily to captivity.
Humans, 2 million years, even the ancestor of chimps and ourselves only takes it back to 6 million years ago, while sharks go back an incredible 450 million years.
The blotchy swellshark or Japanese swellshark (Cephaloscyllium umbratile) is a common species of catshark, belonging to the family Scyliorhinidae.The Blotchy swellshark is found at depths of 90–200 m (300–660 ft) in the northwestern Pacific Ocean, from Japan to Taiwan.
These sharks, being large and powerful predators, may sometimes attack and kill people, even though all have been filmed in open water by unprotected divers. [40] [41] The 2010 French film Oceans shows footage of humans swimming next to sharks in the ocean. It is possible that the sharks can sense the presence of unnatural elements on or about ...
And while it’s true there were and are shark species in the Mediterranean sea, none liked “to bite humans, and in fact, they probably didn't because they were small.”
The whitefin swellshark (Cephaloscyllium albipinnum) is a species of catshark, belonging to the family Scyliorhinidae, endemic to southeastern Australia.It is found 126–554 m (413–1,818 ft) down, on the outer continental shelf and upper continental slope.