Invertebrate Dude

Spiracle (arthropods)

A spiracle or stigma is the opening in the exoskeletons of insects, myriapods, velvet worms and many arachnids that admits air into the respiratory system.

Earliest octopuses were giant top predators in Cretaceous oceans

Top predators drive changes in ecosystem structure. For the last ~370 million years, large-sized vertebrates have dominated the apex of the marine food chain, while invertebrates have served as smaller prey. Here we describe invertebrate top predators ...

The Next Decade of Preprints Needs Experiments, Not Opinions

Lately, I have spent a considerable amount of time writing about my concerns regarding the direction of the preprint ecosystem and the behaviour of some of the actors within it. Increasingly, I wor…

A Canticle to the Waterbirds

Clack your beaks you cormorants and kittiwakes,North on those rock-croppings finger-jutted into the rough Pacific surge;You migratory terns and pipers who leave but the temporal clawtrack written on sandbars there of your presence;Grebes and pelicans; you comber-picking scoters and you shorelong gulls;All you keepers of the coastline north of here to the Mendocino beaches;All you beyond upon the cliff-face thwarting the surf at Hecate Head;Hovering the under-surge where the cold Columbia grapples at the bar;North yet to the Sound, whose islands float like a sown flurry of chips upon the sea;Break wide your harsh and salt-encrusted beaks unmade for songAnd say a praise up to the Lord.And you freshwater egrets east in the flooded marshlands skirting the sea-level rivers, white one-legged watchers of shallows;Broad-headed kingfishers minnow-hunting from willow stems on meandering valley sloughs;You too, you herons, blue and supple-throated, stately, taking the air majestical in the sun-flooded San Joaquin,Grading down on your belted wings from the upper lights of sunset,Mating over the willow clumps or where the flatwater rice fields shimmer;You killdeer, high night-criers, far in the moon-suffusion sky;Bitterns, sand-waders, all shore-walkers, all roost-keepers,Populates of the ‘dobe cliffs of the Sacramento;Open your water-dartling beaks,And make a praise up to the Lord.For you hold the heart of His mighty fastnesses,And shape the life of His indeterminate realms.You are everywhere on the lonesome shores of His wide creation.You keep seclusion where no man may go, giving Him praise;Nor may a woman come to lift like your cleaving flight her clear contralto songTo honor the spindrift gifts of His soft abundance.You sanctify His hermitage rocks where no holy priest may kneel to adore, nor holy nun assist;And where His true communion-keepers are not enabled to enter.And well may you say His praises, birds, for your waysAre verved with the secret skills of His inclinations,And your habits plaited and rare with the subdued elaboration of His intricate craft;Your days intent with the direct astuteness needful for His outworking,And your nights alive with the dense repose of His infinite sleep.You are His secretive charges and you serve His secretive ends,In His clouded, mist-conditioned stations, in His murk,Obscure in your matted nestings, immured in His limitless ranges.He makes you penetrate through dark interstitial joinings of His thicketed kingdoms,And keep your concourse in the deeps of His shadowed world.Your ways are mild but earnest, your manners grave,Your customs carefully schooled to the note of His serious mien.You hold the prime condition of His clean creating,And the swift compliance with which you serve His minor meansSpeaks of the constancy with which you hold Him.For what is your high flight forever going home to your first beginnings,But such a testament to your devotion?You hold His outstretched world beneath your wings, and mount upon His storms,And keep your sheer wind-lidded sight upon the vast perspectives of His mazy latitudes.But mostly it is your way you bear existence wholly within the context of His utter will and are untroubled.Day upon day you do not reckon, nor scrutinize tomorrow, nor multiply the nightfalls with a rash concern,But rather assume each instant as warrant sufficient of His final seal.Wholly in Providence you spring, and when you die you look on death in clarity unflinched,Go down, a clutch of feather ragged upon the brush;Or drop on water where you briefly lived, found food,And now yourselves made food for His deep current-keeping fish, and then are gone:Is left but the pinion-feather spinning a bit on the uproilWhere lately the dorsal cut clear air.You leave a silence. And this for you suffices, who are not of the ceremonials of man,And hence are not made sad to now forego them.Yours is of another order of being, and wholly it compels.But may you, birds, utterly seized in God’s supremacy,Austerely living under His austere eye—Yet may you teach a man a necessary thing to know,Which has to do of the strict conformity that creaturehood entails,And constitutes the prime commitment all things share.For God has given you the imponderable grace to be His verification,Outside the mulled incertitude of our forensic choices;That you, our lesser in the rich hegemony of Being,May serve as testament to what a creature is,And what creation owes.Curlews, stilts and scissor-tails, beachcomber gulls,Wave-haunters, shore-keepers, rockhead-holders, all cape-top vigilantes,Now give God praise.Send up the strict articulation of your throats,And say His name.

in the belly of the MrBeast

what does MrBeast mean?

Symbiotic organs in insects: diversity, functional implications, and terminology

Abstract With over a million described species, insects represent the most successful group of animals on Earth. One of the drivers of insect diversity is their ability to engage in multifold beneficial symbioses with microorganisms, often involving specialized host organs to accommodate intra- or extracellular symbionts. The existence of such organs and their importance for sustaining and transmitting beneficial symbionts has been known for over a century, and specific terms have been established for categorizing organs harbouring intracellular bacteria (bacteriomes) or fungi (mycetomes), or cuticular crypts containing extracellular fungi (mycetangia). For others, however, general terms are lacking, e.g. organs containing extracellular bacteria associated with the cuticle or with the digestive tract. Furthermore, previously established terms have been misused in other contexts. Notably, ‘bacteriome’ has been increasingly employed in the microbiome field to refer to bacterial communities, instead of the term’s original meaning of specialized organs housing intracellular bacterial symbionts. Here, we review and categorize the diversity of symbiotic organs in insects and propose a unified terminology. Our hope is that this common language will facilitate communication and thereby support the field of symbiosis research in unravelling commonalities and differences in the evolution, ecology, development, physiology and molecular basis across symbiotic interactions. This article is part of the theme issue ‘Life in natural microcosms’.

atpota.to/cred.blue

Generate a Bluesky credibility score, discover your AT Protocol data footprint, and vibe check strangers and new accounts.

atpota.to/cred.blue

Generate a Bluesky credibility score, discover your AT Protocol data footprint, and vibe check strangers and new accounts.

Isopod Site

Pillbugs, sowbugs, roly-polies and woodlice, collectively referred to as isopods, are land-dwelling crustaceans that feed on decaying organic matter.

Ecdysis

Ecdysis is the moulting of the cuticle in many invertebrates of the clade Ecdysozoa. Since the cuticle of these animals typically forms a largely inelastic exoskeleton, it is shed during growth and a new, larger covering is formed. The remnants of the old, empty exoskeleton are called exuviae.

I Do Not Accept Your TOS - Tynan's Leaflets

W is proof that the ecosystem is working

nekoweb

cuz internet is for the cats