#sharks cw

[ask-eyefestation]

"Failure to look into its eyes will result in execution."

Hello! This blog is run by @fymo-blogs

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[fymo-blogs]

Can i get a maryland stimboard? For my creator.

(PLEASEEEE)

Ofc!

Warning for sharks below cut!

❣️|💫|🌹

🏵|💧|🌊

🏞|🌈|🫧

Maryland stimboard

Requested by: @four-corners-dude

Themes: Water, coast, town

Song:

[comic-art-showcase]

Namor by Stephen Byrne

[acorviart]

new 4x6" prints!

shop update on june 15

[pixxiecup]

shark moodboard themed around lps #2139 !! 🦈 🫧

[glacierclear]

designed a whole pirate gang for meri!!! the crew of my darling scorned.

[amazeingartist]

I think this version of shark soap is neat

[nerokichi]

can someone stop this genderfluid menace

[strawberrypuppyy]

🐋🐡 Whale Shark Stimboard 🦈🩵

🦈 🐠 🦈 • 🐠 🦈 🐠 • 🦈 🐠 🦈

[bacchuschucklefuck]

species medley ft. gorgug and riz

[bethanythebogwitch]

Wet Beast Wednesday: cookie cutter shark

There are some words that just shouldn't go together, like "edible radium", "reasonable conspiracy theorist", and "sandpaper underwear". Well here's a new one for you: "parasitic shark". The only problem is, that one is real. Yeah, this is one of those animals that's so bizarre it would be mocked as too silly if a fiction writer came up with it. Welcome back to Wet Beast Wednesday, where we discuss the cookie cutter shark.

(Image: a cookie cutter shark said on a patch of fabric. It is a small, brown shark with a darker collar region. Its fins are small and the head is blunt. It is widest around the middle. A pencil has been placed next to it for scale. End ID)

There are two known species of cookie cuter shark: Isistius brasiliensis and Isistius plutodus. The latter, common name: largetooth cookie cutter shark, is much rarer and less well known than the former, which will be the main topic of this post. The cookie cutter shark is a very small shark, measuring between 42 and 56 cm (16-22 in) in length as adults. They have multiple adaptations that set them apart from other sharks, even other members of the dogfish order. Their bodies are described as cigar-shaped, which is why another common name is cigar shark. The head is short and rounded and the mouth is large, with prominent teeth and large lips. The upper teeth are small and narrow while the lower teeth are larger and form a saw-like edge. Unlike other sharks, they do not replace one tooth at a time, but instead lose and replace the entire front lower row at once.

(Image: a closeup of the head of a preserved shark. The lips have been pulled back to expose the mouth showing the large, saw-like lower teeth and much smaller upper teeth. End ID).

Cookie cutters are among the few sharks that are strongly bioluminescent. Their underbellies and a collar around the neck area have luminescent cells called photophores. The cells on the belly mimic light from above, making it difficult for predators below to distinguish the shark from the surface of the ocean. The cells on the neck are believed to be used for attracting prey by mimicking a small fish. Cookie cutter sharks have large livers with a high oil content that helps them maintain buoyancy. While most fins are small (or in the case of the anal fin, missing), the tail fin is large and suited for sudden bursts of speed. Longtooth cookie cuter sharks are larger, with longer bottom teeth and smaller fins.

(Image: photos of the underside of a cookie cutter shark showing the bioluminescent photophores, which make the belly look blue. End ID)

The common name of the cookie cutter shark comes from its unique feeding mechanism. The sharks are deep-sea ambush predators that use their natural buoyancy to remain motionless in the water column while using their bioluminescence to attract prey. When prey approaches, the shark will dart forward and attach to the larger animal. Using its lips to form a seal, the shark can generate suction to make it very hard to remove. It then uses the upper teeth as an anchor to help the larger bottom teeth pierce the skin. Then , the shark spins around (the thrashing of its prey may help) to cut out a roughly circular plug of skin and muscle. The circular holes left behind are reminiscent of bits of cookie dough cut out by a cookie cutter, hence the name. The sharks will also eat small fish and squid whole and are known to scavenge carrion. They will sometimes school, possibly to help attract prey while discouraging predators. Just about any medium to large animal in the shark's territory is a possible target. Scars from cookie cutter shark feeding have been found on cetaceans (whales and dolphins), pinnipeds (seals and sea lions), other sharks, rays, and bony fish. Because the sharks feed off of other animals without killing them, they are considered parasites. Specifically, they are facultative ectoparasites, meaning they attach to the outside of their hosts and are not fully dependent on parasitism to survive.

(Image: a swordfish with multiple fresh bites from cookie cutter sharks. The bites look like pink pits dug into the swordfish's side. End ID)

Cookie cutter sharks are found worldwide in the mesopelagic zone (roughly 200 - 3000 ft deep), though they have been known to move to shallower water. They are found worldwide and seem to prefer the open ocean. Most sightings are around islands, but its not clear if they do congregate around islands or this is a case of sampling bias. Because of their remote habitats, little is known about their behavior in the wild. Likewise, we don't know much about their reproductive behavior, though like other dogfish, they are viviparous. The embryos are raised in two uteruses and there can be up to 12 of them. They likely have a very long gestation period.

(Image: a slender cookie cutter shark seen from the side)

Cookie cutter sharks are classified as least concern by the IUCN. There is no fishery for them and they are only caught as bycatch. People have been able to see the scars left by the sharks on their prey for a very long time and there were several hypotheses for what was leaving the scars, including lampreys and bacteria. In 1971, scientist Everett Jones was the one who discovered that the cigar sharks (as they were then known) were responsible. The name cookie cutter shark became popular after that. Human interaction with the sharks are rare, but multiple attacks have been recorded, most of them on swimmers trying to cross the channels in Hawai'i. There have also been reports of shipwrecked sailors being attacked and bodies have been recovered with signs of cookie cutter shark scavenging. Generally though, the sharks are not considered dangerous to humans due to their remote, deep-sea habitat. Back in the 1970s, US Navy submarines kept finding circular holes in the neoprene coating of their sonar domes, which let components leak out and impaired the subs' navigation abilities. Putting fiberglass over the domes solved the problem, but it wasn't realized until much later that the damage was caused by cookie cutter sharks mistaking the subs for prey and not an unknown weapon. This wasn't even the only time this happened. In the 1980s, it happened again with the robber coating for some electric equipment. If only we could all setback militaries as easily as this little shark.

(Image: a circular scar left on someone's calf by a cookie cutter shark bite. End ID)

[fymo-blogs]

My brother saw a shark in the ocean

Run.

[comic-art-showcase]

Batman by Chris Samnee

Batober prompt: Crash

[rununcal]

This is honestly one of the best ships also sorry I made nabnaleena so girlypop still working on a design for her

[hope-for-the-planet]

Usually, sharks don't have much interest in lionfish--this is due partially to their venomous spines, but also to the fact that the sharks don't recognize the nonnative fish as prey. The lack of predation by native predators like sharks is part of what makes lionfish such a damaging invasive species.

However, sharks became more interested after spearfishermen working to cull invasive lionfish started feeding the fish they were killing to nearby sharks. After receiving many lionfish "handouts", the fishermen observed sharks hunting and eating lionfish on their own.

This spurs hope that sharks could be "taught" to view lionfish as a viable source of food and contribute to limiting their numbers.

[pixxiecup]

agere / petre stimboard with sharks n puppies :D

[ 🦈 🍼 🐶 / 🦈 🍼 🐶 / 🦈 🍼 🐶 ]