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vintagewildlife · 1 day
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Honeybee pupa development By: Stephen Dalton From: Wild, Wild World of Animals: Insects & Spiders 1977
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bedupolker · 2 years
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Real Isopod Facts
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unofficial-sean · 2 years
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crab uber
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ninala · 1 year
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elntangle · 7 months
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isopod espionage
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sitting-on-me-bum · 11 months
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Tourists recently spotted the 30-foot-long invertebrate in shallow waters off Antarctica.
Extremely rare phantom jellyfish caught on camera
PHOTOGRAPH BY MARK NIESINK
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bugthebard · 2 years
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References:
Dunlop, J. A., Anderson, L. I., Kerp, H., & Hass, H. (2003). Preserved organs of Devonian harvestmen. Nature, 425(6961), 916–916. https://doi.org/10.1038/425916a  
Machado, G., & Raimundo, R. L. G. (2001). Parental investment and the evolution of subsocial behaviour in harvestmen (Arachnida Opiliones). Ethology Ecology & Evolution, 13(2), 133–150. https://doi.org/10.1080/08927014.2001.9522780
Martens, J. (1993). Further cases of paternal care in Opiliones (Arachnida). Tropical Zoology, 6(1), 97–107. https://doi.org/10.1080/03946975.1993.10539212
Mora, G. (1990). Paternal care in a neotropical harvestman, Zygopachylus albomarginis (Arachnida, Opiliones: Gonyleptidae). Animal Behaviour, 39, 582-593.
Nazareth, T. M., & Machado, G. (2009). Reproductive behavior of Chavesincola inexpectabilis (Opiliones, Gonyleptidae) with description of a new and independently evolved case of paternal care in harvestmen. Journal of Arachnology, 37(2), 127–134. https://doi.org/10.1636/ST08-32.1
Shear, W. (2009). Harvestmen: Opiliones—Which include daddy-long-legs—Are as exotic as they are familiar. American Scientist, 97(6), 468-475.
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kiabugboy · 8 months
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Triassic non-marine horseshoe crabs,
many ancestors of today's marine animals find refuge in brackish environments, as the Permian Great Dying caused the sea to become anoxic and choked most of the marine life at the time
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oarfjsh · 5 months
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cute little baby alert! saitis barbipes
taking macros of jumping spiders often turns into a silly contest because they will pounce at their reflection in the lens
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alphynix · 9 months
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The tuzoiids were an enigmatic group of Cambrian invertebrates known mostly just from their spiny bivalved carapaces. Although hundreds of fossils of these arthropods were discovered over the last century or so, only vague fragments of the rest of their bodies have been found even in sites usually known for preserving soft tissue impressions.
…Until late 2022, when several new specimens from the Canadian Burgess Shale deposits (~508 million years ago) were described showing tuzoiid anatomy in exceptional detail, finally giving us an idea of what they looked like and where they fit into the early arthropod evolutionary tree.
Tuzoiids like Tuzoia burgessensis here would have grown up to about 23cm long (~9"). They had large eyes on short stalks, a pair of simple antennae, a horizontal fluke-like tail fan, and twelve pairs of appendages along their body – with the front two pairs at the head end being significantly spinier, and most (or all) of these limbs also bearing paddle-like exopods.
The large carapace enclosed most of the body, and was ornamented with protective spines and a net-like surface pattern that probably increased the strength of the relatively thin chitinous structure.
Together all these anatomical features now indicate that tuzoiids were early mandibulates (part of the lineage including modern myriapods, crustaceans, and insects), and were probably very closely related to the hymenocarines.
Tuzoiids seem to have been active swimmers that probably cruised around just above the seafloor, with their stout legs suggesting they could also walk around if they flexed their valves open. The arrangement of their spiny front limbs wasn't suited to grabbing at fast-swimming prey, but instead may have been used to capture slower seafloor animals or to scavenge from carcasses.
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NixIllustration.com | Tumblr | Twitter | Patreon
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InsertAnInvert2024
January theme: Bugs Among Us
Week 1: Firebrat! (Thermobia Domestica)
A little insect that snuggles into warm cozy spaces and munches on leaf litter, cereals, and book bindings. They have a distinctive long three tail-like appendages!
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vintagewildlife · 4 hours
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Portuguese man o' war nymph By: Unknown photographer From: Wildlife Fact-File 1990s
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bedupolker · 2 years
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Isopod Culture vs Isopod Counterculture
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fyanimaldiversity · 1 year
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Bilateral gynandromorph carpenter bee [x]
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tinylongwing · 2 months
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A sweet fuzzy Phidippus californicus, California jumping spider, watching the world from a patch of Swiss chard. Private commission for @halffizzbin. I love these cute little teddy bears so much 💗
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dinoserious · 5 months
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invertober 30, leopard slug. this is a bit silly
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