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[deleted user]
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Apr 20, 2026 09:31AM
This is Casper's Nest ! Remember to follow specific Nest rules !
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RulesDon't start drama
If your banned, stay the fuck out.
If someone is little in this space, no cussing
Casper ~ᵀʳᵘˢᵗ ⁱˢ ʰᵃʳᵈ ᵗᵒ ᶜᵒᵐᵉ ᵇʸ~ wrote: "People being assholes like usual"
aw im sorry kiddo
aw im sorry kiddo
oop *grabs knife and throws it away* no sharps
thats fine, you wanna tell me abt your sharks ?
Sharks use their gills to filter oxygen from the water. They are a special type of fish known as "elasmobranchs", which translates into fish made of cartilaginous tissues. This category also includes rays, sawfish, and skates. Their cartilaginous skeletons are much lighter than true bone and their large livers are full of low-density oils, both helping them to be buoyant. Even though sharks don't have bones, they still can fossilize. As most sharks age, they deposit calcium salts in their skeletal cartilage to strengthen it. The dried jaws of a shark appear and feel heavy and solid; much like bone. These same minerals allow most shark skeletal systems to fossilize quite nicely. The teeth have enamel so they show up in the fossil record too.
*nods* i didnt know that, thats awesome kiddo
Some sharks have homocercal tails, where the upper and lower tail lobes are the same size, or symmetrical. A symmetrical tail can propel a shark through the water at high speeds. A great example of this tail is the shortfin mako whose latin name, Isurus oxyrinchus, means “same tail, pointy snout.” The shortfin mako can have swim bursts up to 90 miles per hour!other sharks have heterocercal tails, which means that the top and bottom parts (the lobes) of the fin are asymmetrical. The bottom of the tail moves first and the top trails behind and bends at the tip. This lifts the body and allows the shark to make quick turns. The most dramatic example of a heterocercal tail is the thresher shark. The upper lobe of the tail is as long as the rest of its body! The thresher shark uses that long tail to slap and stun fish when hunting.
oooh i like mako sharks theyre pretty
your favorite is the dwarf lantern right?
thats great kiddo :) anything else you wanna talk abt?
well im here if you wanna talk ok :)
that sounds awful is there any where that doesnt smell like that?



