Logics-posts - Jude

kuguri sashi tutorial by guccciclone on instagram

sashiko is such an interesting japanese technique for mending clothes! I still have yet to try it yet I want to one day!

There are four types of fish scales!

Cycloid scales are thin, overlap, and flexible. They're found on primitive teleosts (like minnows and carp).

Ctenoid scales have small, backwards pointed scales (known as cterns) make the fish more hydrodynamic and faster. They're found on Advanced Ctenoids (like perch and sunfish).

Ganoid scales are thick, diamond-shaped, and mostly non-overlapping. They're found on Chondrostei (like sturgeons and paddlefish).

Placoid scales are spikey and tooth-like with nerves. These are found on Chondrichthyes (like sharks and rays).

Ichthyology Notes 3/?

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Your life ends in the wasteland.

Castle seen from forest by Mark Ferrari.

Hwiccewyrm trispiculum lived during the late Triassic, around 208-202 million years ago, in what is now England. It was one of the last known members of the procolophonid family, a lineage of small stocky lizard-like animals that had been widespread and abundant earlier in the Triassic.

(Traditionally procolophonids are classified as parareptiles, but some recent studies suggest this group is paraphyletic or polyphyletic, with some "parareptiles" potentially nesting within the diapsids instead.)

Measuring around 30cm long (~1'), Hwiccewyrm had wide flaring cheek bones ornamented with large spines, and like some other procolophonids it may also have had bony scute armor on its body. Its large blunt teeth suggest it was feeding on particularly tough foods such as fibrous vegetation or hard-shelled invertebrates.

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References:

Butler, Richard J., et al. "Hwiccewyrm trispiculum gen. et sp. nov., a new leptopleuronine procolophonid from the Late Triassic of southwest England." The Anatomical Record 307.4 (2024): 1390-1420. https://doi.org/10.1002/ar.25316

Meade, Luke E., et al. "A new procolophonid with complex dentition from the Late Triassic of southwest England." Papers in Palaeontology 10.6 (2024): e1605. https://doi.org/10.1002/spp2.1605

Merck, John. "The Reptilian Stem - A Work in Progress" University of Maryland GEOL 431 Vertebrate Paleobiology, 2025, https://www.geol.umd.edu/~jmerck/geol431/lectures/17sauropsida.html

Wikipedia contributors. “Hwiccewyrm” Wikipedia, 20 Mar. 2025, https://en.wikipedia.org/wiki/Hwiccewyrm

Wikipedia contributors. “Parareptilia” Wikipedia, 04 Apr. 2025, https://en.wikipedia.org/wiki/Parareptilia

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Divers free a Megamouth shark from a fishing net in Tateyama Bay.

The Megamouth is a large deep-sea shark,  rarely seen by people.  Despite reaching a considerable adult size of 4m-5.2m,  they are the smallest of the filter-feeding sharks,  which includes the Basking Shark and the Whale Shark..  Their large mouths are lined with bioluminescent photophores,  which are thought to attract plankton and fish to the slow-moving shark.

(source)

Due to a growing demand for sustainable travel, the Orient Express is coming back in Europe for the first time since 1977.