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taxonomytournament · 14 days

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Taxonomy Tournament: Cnidarian Finale

Hydrozoa. This class is of predatory cnidarians, some of which are colonial, incllude hydras and the Portuguese Man o' War

Hexacorallia. This class is made up of aquatic animals with 6-fold symmetry. It includes stony corals and sea anemones

#animals #biology #polls #poll tournament #zoology #jellyfish #hydras #portuguese man o'war #cnidarians #coral #sea anemones #Hydrozoa #Hexacorallia #0x9v0x36

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heartnosekid · 2 months

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clownfish swimming through bleached anemones | jonoallenphotography on ig

if you have a moment and are mentally able, please read the text accompanying the original instagram post, located at the source link above, and this short article by The National Oceanic and Atmospheric Administration. if not, please just share it around. it's true this video is strikingly beautiful, but the truth behind it is, in my opinion, necessary for everyone to know.

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dougdimmadodo · 1 year

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Magnificent Sea Anemone (Heteractis magnifica)

Family: Stichodactylid Anemone Family (Stichodactylidae)

IUCN Conservation Status: Unassessed

Although sea anemones like the Magnificent Sea Anemone are sometimes mistaken for marine plants, they are actually animals (more specifically Anthozoans or “flower animals”, making them close relatives of corals and more distant cousins of jellyfishes.) Native to shallow tropical and subtropical regions of the Indo-Pacific ocean region, the Magnificent Sea Anemone spends its entire adult life attached to rocky surfaces using a suction-cup like structure called a basal disk located on its underside. It gains nutrients both through photosynthesis (with photosynthetic single-celled organisms living inside its tissues, called zooxanthellae, providing it with nutrients in exchange for protection from predators and environmental conditions) and by catching small fishes using its many rings of venomous stinging tentacles (with prey that has been stung being grabbed by the tentacles and passed into a mouth at the center of the tentacle rings through which prey is taken into a stomach-like cavity to be digested; after digestion has occurred, any indigestible material such as bones then leave the body through the same opening they entered through. At least 14 species of anemonefishes (small fishes with a protective layer of mucus on their scales that protect them from the stings of anemones, of which clownfishes are the most famous example) make their homes among the tentacles of Magnificent Sea Anemones (with one species, the Pacific Anemonefish, being found exclusively alongside members of this species,) and this relationship is mutually beneficial for both parties – the anemonefishes are protected from predators by the anemone’s stinging tentacles, and in return they provide the anemone with additional nutrients in the form of their droppings, keep its tentacles clean by eating parasites that infest them and may also serve a role in drawing in prey, with their striking colours making them highly visible and encouraging larger fishes that may try to eat them to come within their host’s reach. Magnificent Sea Anemones can reproduce both asexually (splitting down the middle into two separate but genetically identical individuals) and sexually (releasing gametes freely into the water, with gametes that meet fusing and developing into genetically distinct, free-swimming larvae that spend a period of time drifting through the water as plankton before eventually settling on a suitable area on the seabed and beginning their development into immobile adults,) and upon reaching adulthood they are among the largest of all sea anemones.

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Image Source: https://www.inaturalist.org/taxa/143047-Heteractis-magnifica

#Magnificent Sea Anemone #sea anemone #sea anemones #cnidarians #animal #animals #marine animals #marine biology #zoology #biology #Cnidology #wildlife #marine wildlife #invertebrates #invertebrate

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earthanthem · 1 year

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(via GIPHY)

#giphy #colorful #ocean #fish #nemo #marine life #ocean life #anemone #oceana #clownfish #clown fish #sea anemone #orange fish #anemones #sea anemones

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uncharismatic-fauna · 1 year

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Uncharismatic Fact of the Day

Siblings can be a pain-- especially when they're all clones of you. The aggregating anemone is often found in masses of up to a hundred polyps, all of them identical to each other. The ones on the edge of the mass are smaller and unable to reproduce, but have larger, specialized tentacles called acrorhagi that they use to defend their territory from invading anemone masses.

(Image: A small group of aggregating anemones (Anthopleura elegantissima), one of which is in the middle of dividing, by Dave Cowles)

If you like what I do, consider leaving a tip or buying me a ko-fi!

#aggregating anemone #Actiniaria #Actiniidae #sea anemones #anemones #cnidaria #invertebrates #uncharismatic facts

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splashing-water · 1 year

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anthozoans

#photography #marine life #marine biology #ocean #sea #sea anemones #corals

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blackswallowtailbutterfly · 1 month

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In The Fish Tank

Or rather aquarium, I suppose. Anyway, some places, hotels, people's homes, an official aquarium, whichever, have some cool creatures in a watery enclosure.

#in the fish tank #aquarium #underwater life #sea anemones #sea cucumber #clownfish #starfish #turtle #marine life #my photos #photography #blackswallowtailbutterfly

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twice-lit-sky · 2 months

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#tide pools #pacific ocean #sea anemones #crashing waves #sea life #oregon coast #ocean life #tidal pools #photography #oc #pacific northwest

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justalovah · 1 month

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sea anemones 🥹🥹 looks like a big strawberry <3 i would love to be a small fish hanging out there every day

#sea anemones #anenome #sea creatures #sea animals #marine life #oceancore #sealife #aquamarine #ocean #aquarium

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abysmal-zone · 1 year

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[ID: A lithographic illustration in warm tones of sea anemones in various shapes, colors, and sizes. They frame the entire image while clinging to rocky brown surfaces. There’s a patch of barnacles in the bottom right corner. There’s also a section of water in the center, with more anemones seen faintly in the background. End ID.]

Ernst Haeckel, Kunstformen der Natur

#had to post this again because it broke the first time #described #sea anemones #animals #oceans #aquatic #lithography #art #books #ernst heackel #abysmal-zone

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taxonomytournament · 2 months

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Taxonomy Tournament: Cnidarians