| 单词 | medusa |
| 例句 | Then they have taken the form of a medusa. The Thing About Jellyfish 2015-09-22T00:00:00Z There is menace, too, in the sea, which is teeming with nasty stinging jellyfish known as medusas. Review: In ‘Hot Milk,’ by Deborah Levy, a Broken Life and a Frayed Maternal Bond 2016-07-10T04:00:00Z Vivid hues that evoked the sea beds and headwear that resembled medusas continued the theme. Dior reimagines feminist fashion in history in Paris show 2022-03-01T05:00:00Z “Very lovely, la medusa,” he said in English, “But she will hurt you very, very much.” Explorer: The Island of Sant?Antioco, off Sardinia, Italy 2010-03-26T07:58:00Z A jellyfish begins its life cycle as an anemone-like creature on the sea floor before undergoing a metamorphosis and sprouting into a recognizable medusa — that Pacman ghost shape we're all familiar with. Researchers announce Pacman ghost-shaped jellyfish is the oldest in fossil record 2023-08-02T04:00:00Z The medusa is dome-shaped, with tentacle-like appendages hanging down from the edges of the dome. Fundamentals of Biology 2015-01-01T00:00:00Z Other species are solitary polyps or solitary medusae. Concepts of Biology 2013-04-25T00:00:00Z Gradually, the medusa buds off the polyp once again, rejuvenated. This Jellyfish Can Live Forever. Its Genes May Tell Us How. 2022-09-06T04:00:00Z Scientists prefer the term jelly or medusa over jellyfish because the creatures are not fish. Jelly? Researchers discover new deep-sea creature in Monterey Bay 2022-04-25T04:00:00Z Dr. Griffith knew that her disease, like cancer, was not one disease but many, a medusa of waving tentacles. Reinventing the Uterus, One Organoid at a Time 2021-04-27T04:00:00Z Both the medusa and polyp have two tissue layers, with mesoglea in between. Fundamentals of Biology 2015-01-01T00:00:00Z In other cnidarians, both a polyp and medusa form exist, and the life cycle alternates between these forms. Concepts of Biology 2013-04-25T00:00:00Z As the medusas shrank into little balls, sprouted polyps and began remaking their adult bodies, the scientists took snapshots of what genes they were using in each phase of their development. This Jellyfish Can Live Forever. Its Genes May Tell Us How. 2022-09-06T04:00:00Z A black floor-length gown with undulating straps could have been a poisonous medusa, with coral-red dye bleeding down its multi-layered skirt. Paris couture climbs Mount Olympus, plumbs marine depths 2020-01-20T05:00:00Z A black floor – length gown with undulating straps could have been a poisonous medusa, with coral – red dye bleeding down its multi-layered skirt. Paris couture climbs Mount Olympus, plumbs marine depths 2020-01-20T05:00:00Z The male medusa makes sperm, whereas the female medusa makes eggs. Fundamentals of Biology 2015-01-01T00:00:00Z The class Anthozoa includes all cnidarians that exhibit a sessile polyp body plan only; in other words, there is no medusa stage within their life cycle. Concepts of Biology 2013-04-25T00:00:00Z Like the octopus, the medusa, or jellyfish, is one of the original sea monsters. Mary Norris: Greek to Me 2019-01-07T05:00:00Z She conjures a lineage of threatening archetypes: the harpy and her talons, the witch and her spells, the medusa and her writhing locks. I Used to Insist I Didn’t Get Angry. Not Anymore. 2018-01-17T05:00:00Z Overall, the videos revealed just how ravenous gelatinous creatures like comb jellies and medusae are, playing a critical role in the ocean food web. Underwater robots reveal the cannibalistic all-you-can-eat-buffet of the deep sea 2017-12-14T05:00:00Z The defining characteristic of this class is that the medusa is the prominent stage in the life cycle, although there is a polyp stage present. Fundamentals of Biology 2015-01-01T00:00:00Z The medusa is the dominant stage in the life cycle, although there is also a polyp stage. Concepts of Biology 2013-04-25T00:00:00Z Rather than a single naked medusa or a colony lodged inside a fortified skeleton, siphonophores are naked colonies of Siamese twins. New Glimpses of Rare Deep Sea Siphonphores 2017-10-07T04:00:00Z As the tray of fresh medusa fritta is passed around, eager fingers grab the piping hot morsels. Invasion of the jellyfish: Is it time to get frying? - BBC News 2017-08-12T04:00:00Z A medusa with fiber-optic hair, a Buddha confettied with pills, a crucified astronaut — the sequence says a hundred things simultaneously, mainlining themes and world views directly into your brain. In the age of streaming TV, who needs title sequences? 2017-07-05T04:00:00Z The mesoglea is thicker in the dome of the medusa than in the polyp. Fundamentals of Biology 2015-01-01T00:00:00Z Everyone, including the media, unwittingly participates to conferr an amorphous aura to this medusa, ensuring that it can never get killed. Death Toll From Terrorist Attack in Nice, France, Rises to 84 2016-07-15T04:00:00Z Later, the polyp buds, release many swimming medusae that then spawn and die. Like 'Deadpool,' This Jellyfish Has Amazing Superpowers 2016-03-02T05:00:00Z When most people think of jellyfish, they picture the medusa stage. How to Grow a Jellyfish 2015-11-18T05:00:00Z This small animal known as a medusa collected in the Mediterranean is a relative of a jellyfish species whose members are thought to be immortal. Multitude of Microscopic Wonders Discovered in the World's Oceans [Slide Show] 2015-05-21T04:00:00Z The first is the gastrozooid, which is adapted for capturing prey and feeding; the other type of polyp is the gonozooid, adapted for the asexual budding of medusa. Fundamentals of Biology 2015-01-01T00:00:00Z Like most hydrozoans, Turritopsis passes through two main stages of life, polyp and medusa. Can a Jellyfish Unlock the Secret of Immortality? 2012-11-28T23:26:58Z In some medusae, calluses formed in their mouths if they were overfed or injured. Like 'Deadpool,' This Jellyfish Has Amazing Superpowers 2016-03-02T05:00:00Z Henry calls Eleanor “the new medusa, that gorgon,” yet loves her for her fire and energy. Flirty Joanna Lumley Betrays Lion King Robert Lindsay in London 2011-11-18T00:37:33Z The power and prosperity of its coasts would shrivel under the breath of winter, as a medusa thrown on shore shrinks to an insignificant film under the influence of the destructive atmosphere. Man and Nature or, Physical Geography as Modified by Human Action 2011-11-11T03:00:34.027Z The ephyra grow into medusas, the mature forms of the jellyfish. Fundamentals of Biology 2015-01-01T00:00:00Z When these buds swell, they sprout not flowers but medusas. Can a Jellyfish Unlock the Secret of Immortality? 2012-11-28T23:26:58Z As Jinru raised the polyps into medusae, they settled on the tank’s floor. Like 'Deadpool,' This Jellyfish Has Amazing Superpowers 2016-03-02T05:00:00Z “At length one morning we observed many polypi, medusae, and squid—” “And what?” interrupted Tom Flinders, who was listening to Weston’s narrative “auribus erectis.” The War of the Axe Adventures in South Africa 2011-10-10T02:00:22.657Z They always put me in mind of dishonest lawyers, these medusae—they kick and sting for a livelihood. In Touch with Nature Tales and Sketches from the Life 2011-08-31T02:01:35.803Z In the waters below and around the cape several specimens of algæ, medusa, hydroids, and other low forms of marine life were secured. The Romance of Polar Exploration Interesting Descriptions of Arctic and Antarctic Adventure from the Earliest Time to the Voyage of the ?Discovery? 2011-07-22T02:00:16.487Z A medusa has a bell-shaped dome and dangling tentacles. Can a Jellyfish Unlock the Secret of Immortality? 2012-11-28T23:26:58Z In the 1990s Italian researchers discovered that Turritopsis dorhnii, a jellyfish the size of a pen tip, reverts back and forth from a medusa to a polyp, earning the nickname the immortal jellyfish. Like 'Deadpool,' This Jellyfish Has Amazing Superpowers 2016-03-02T05:00:00Z Only the medusa, which was taken in the R. Yang-tze-kiang, is as yet known. Freshwater Sponges, Hydroids & Polyzoa 2011-06-25T02:00:17.833Z And she braided her hair with deadly snakes, that were for ever wriggling in and out, like the tentacles of yonder medusae just floating past us. In Touch with Nature Tales and Sketches from the Life 2011-08-31T02:01:35.803Z On Tab. xviii. he figures Anemones and other beasts, but not medusae. Notes and Letters on the Natural History of Norfolk More Especially on the Birds and Fishes 2011-04-18T02:00:11.353Z Those belong to a different taxonomic group, Scyphozoa, and tend to spend most of their lives as jellyfish; hydrozoans have briefer medusa phases. Can a Jellyfish Unlock the Secret of Immortality? 2012-11-28T23:26:58Z "I am the medusa you saved when wrecked on your shore; and these are some of my relations gathered to welcome you amongst us." The Ravens and the Angels With Other Stories and Parables 2011-02-23T03:00:29.860Z The medusa was originally taken off the coast of Ceylon, while the hydroid was discovered in ponds of brackish water at Port Canning. Freshwater Sponges, Hydroids & Polyzoa 2011-06-25T02:00:17.833Z She remembered having been in that lonely spot once before with Uros; she had seen the strand all covered with bloated bluish medusas, melting away in the sun. The Pobratim A Slav Novel 2011-01-11T03:00:27.460Z Shrimps, small fish, lobsters, various mollusks, and medusae form his diet. The Swiss Family Robinson or, Adventures on a Desert Island 2011-01-03T03:01:03.473Z An adult medusa produces eggs or sperm, which combine to create larvae that form new polyps. Can a Jellyfish Unlock the Secret of Immortality? 2012-11-28T23:26:58Z The whelks entered a little more into it; and he could not help hoping he might fall in with another medusa. The Ravens and the Angels With Other Stories and Parables 2011-02-23T03:00:29.860Z Only the medusa, which is found in Lake Tanganyika, Lake Victoria Nyanza and the R. Niger, has been found and it is doubtful whether a hydroid generation exists. Freshwater Sponges, Hydroids & Polyzoa 2011-06-25T02:00:17.833Z Half evolved creatures in a transition stage; nearer, perhaps, to the medusa on the one side than to perfected humanity on the other. The Man from Archangel and Other Tales of Adventure 2011-01-01T03:00:24.903Z Their swords tucked into their shirts, they chatted with their counselor, Jason McConnell, 18, about the difference between medusas and gorgons. At Camp, Make-Believe Worlds Spring Off the Page 2010-07-17T03:58:00Z In other hydroid species, the medusa dies after it spawns. Can a Jellyfish Unlock the Secret of Immortality? 2012-11-28T23:26:58Z A large medusa was found on the beach. Narrative of a Second Expedition to the Shores of the Polar Sea Conspicuous among other varieties one sees the blue medusa, twelve inches and more in diameter. The Pearl of India The stationary oyster is of higher organization than the free-swimming medusa; and the cold-blooded and less heterogeneous fish is quicker in its movements than the warm-blooded and more heterogeneous sloth. Essays: Scientific, Political, & Speculative, Vol. I I’m as soft as one of those medusae—jellyfish—what do you call them?—that float by opening and shutting themselves, all of a wet gasp, as one might say.” Hunting the Skipper The Cruise of the "Seafowl" Sloop A Turritopsis medusa, however, sinks to the bottom of the ocean floor, where its body folds in on itself — assuming the jellyfish equivalent of the fetal position. Can a Jellyfish Unlock the Secret of Immortality? 2012-11-28T23:26:58Z Rapidly the medusa disappeared from the window; more rapidly yet she came running down the steps, brandishing her husband’s terrible whip. An Eagle Flight A Filipino Novel Adapted from Noli Me Tangere Edible.—The medusa's head hydnum is a rarer species than either of the above in this country. Studies of American Fungi. Mushrooms, Edible, Poisonous, etc. A hemispherical medusa found in the Indian and Red Seas. The Sailor's Word-Book An Alphabetical Digest of Nautical Terms, including Some More Especially Military and Scientific, but Useful to Seamen; as well as Archaisms of Early Voyagers, etc. The larger portion of these medusae, consisting of transparent substances of a lemon-yellow colour, and globular form, appeared to possess very little power of motion. The Ocean and its Wonders The new polyp produces new medusas, and the process begins again. Can a Jellyfish Unlock the Secret of Immortality? 2012-11-28T23:26:58Z The object of this curious arrangement is to enable the whale to catch the little shrimps and small sea-blubbers, called “medusae,” on which it feeds. Fighting the Whales Primitive eyes appear in animals very low in the scale of life; probably the most remarkable of these early organs of sight are to be found in the medusa, or jelly-fish. The Dawn of Reason or, Mental Traits in the Lower Animals A name for the jelly-fish or medusa, frequently thrown ashore in summer and autumn. The Sailor's Word-Book An Alphabetical Digest of Nautical Terms, including Some More Especially Military and Scientific, but Useful to Seamen; as well as Archaisms of Early Voyagers, etc. The semi-transparent globules appeared to consist of an animal of the medusa kind. The Ocean and its Wonders An adult medusa is about the size of a trimmed pinkie fingernail. Can a Jellyfish Unlock the Secret of Immortality? 2012-11-28T23:26:58Z Directly afterwards we found ourselves in a shoal of medusas or jellyfish. My First Voyage to Southern Seas The above experiments and observation seem to indicate the presence of conscious determination in the medusa; in fact, there seems to be a distinct element of choice in these psychical manifestations. The Dawn of Reason or, Mental Traits in the Lower Animals The creatures the girls were admiring were medusae, beautifully transparent, which were floating along near the surface. In the Eastern Seas We cannot pass from it, however, without expressing our difference of opinion in regard to the power of the medusae to emit their light “at will.” The Ocean and its Wonders Medusas found in cooler waters have a bright scarlet bell, but more commonly the medusa is translucent white, its contours so fine that under a microscope it looks like a line drawing. Can a Jellyfish Unlock the Secret of Immortality? 2012-11-28T23:26:58Z Dr Cuff had a powerful microscope, through which he examined one of the stomachs of the medusae. My First Voyage to Southern Seas It was just when we had been having a very interesting conversation upon the medusae, especially those of a phosphorescent nature. The Ocean Cat's Paw The Story of a Strange Cruise The object of this curious arrangement is to enable the whale to catch the little shrimps and small sea-blubbers, called "medusa;", on which it feeds. Fighting the Whales The number of medusae in the olive-green water was found to be immense. The Ocean and its Wonders He wants to make sure that the medusas look healthy: that they are swimming gracefully; that their bells are unclouded; and that they are digesting their food. Can a Jellyfish Unlock the Secret of Immortality? 2012-11-28T23:26:58Z Even small objects, such as medusae, and fragments of weed floating in mid-sea, were distinguishable at a considerable distance; and fishing-boats could be clearly made out at the distance of a mile. The Log of the Flying Fish A Story of Aerial and Submarine Peril and Adventure The slime of medusa lights lined the long foam trail of the Lady Washington each night. Vikings of the Pacific The Adventures of the Explorers who Came from the West, Eastward The most conspicuous of which were of the gelatinous or medusa kind, almost globular; and another sort smaller, that had a white or shining appearance, and were very numerous. A General History and Collection of Voyages and Travels, Volume 16 It may give a better conception of the amount of medusae in this extent, if we calculate the length of time that would be requisite, with a certain number of persons, for counting this number. The Ocean and its Wonders Though the cysts are tiny, barely visible to the naked eye, they are often too large for a medusa to digest. Can a Jellyfish Unlock the Secret of Immortality? 2012-11-28T23:26:58Z Also many different sorts of medusa, particularly tubes of about 0.5 inches in length, with an apparatus shaped like a proboscis at one extremity of it. Journals of Two Expeditions of Discovery in North-West and Western Australia, Volume 2 By means of its poison-bearing tentacles, the soft, gelatinous medusa is more than a match for the armed crustacean and the scale-clad fish. Chambers's Edinburgh Journal, No. 423 Volume 17, New Series, February 7, 1852 The medusae of the Arctic seas, an allied existence, people the ultramarine blue of the cold, pure sea with vivid patches of living green thirty miles in diameter. Lippincott's Magazine of Popular Literature and Science Volume 12, No. 28, July, 1873 Many scientific travellers have carefully examined this subject, and we believe that all agree in referring this beautiful appearance to the medusae. The Ocean and its Wonders “Eat by yourself!” he yells at one medusa. Can a Jellyfish Unlock the Secret of Immortality? 2012-11-28T23:26:58Z The acalephae were not so numerous as they had been further to the north, but we saw more and larger medusae than I had ever before remarked. Journals of Two Expeditions of Discovery in North-West and Western Australia, Volume 2 Leaded windows, gargoyles, masculine medusa heads, a sallyport, loopholes and a little spire. Mince Pie He quaintly elucidates this inconceivable number by explaining that eighty thousand persons would have been employed since Adam in counting these little medusae in the two square miles. The New North Sea-nettles, or medusae, are well known to constitute the principal food of that species of whale which is termed the right whale. The Ocean and its Wonders When traveling abroad for academic conferences, Kubota has had to carry the medusas with him in a portable cooler. Can a Jellyfish Unlock the Secret of Immortality? 2012-11-28T23:26:58Z It indeed appeared as if the acalephae diminished and the medusae increased in number after passing the 36th degree of south latitude. Journals of Two Expeditions of Discovery in North-West and Western Australia, Volume 2 A shark was also taken, eleven feet long; and many curious specimens of crustacea and medusa were obtained by the towing-net. Narrative of a Survey of the Intertropical and Western Coasts of Australia Performed between the years 1818 and 1822 — Volume 2 The medusa is a genus of molusca; and I think M. le Seur told me he reckons forty-three or forty-four species of that genus. A Ramble of Six Thousand Miles through the United States of America On his return voyage he fell in with the same mass of medusae off the Western Islands, and was three or four days in sailing through them. The Ocean and its Wonders “I envy the immortal medusa!” gushed the hostess. Can a Jellyfish Unlock the Secret of Immortality? 2012-11-28T23:26:58Z Near the surface floated the medusae, living parasols of an opaline whiteness with circular borders of lilac or red bronze. Mare Nostrum (Our Sea) A Novel This day as usual many medusae were seen; and also a snake, three feet long; its back was black, the belly yellow, and the tail striped black and white. Narrative of a Survey of the Intertropical and Western Coasts of Australia Performed between the years 1818 and 1822 — Volume 1 Also applied to the proboscis or manubrium of a hydroid medusa. The Gutenberg Webster's Unabridged Dictionary Section F, G and H An arched whitish putty-like mass, some fifty odd ounces in weight, with a number of white filaments hanging down from it, looking not unlike the medusae which float in our summer seas. The Stark Munro Letters His superhero alter ego has its own costume: a white lab jacket, scarlet red gloves, red sunglasses and a red rubber hat, designed to resemble a medusa, with dangling rubber tentacles. Can a Jellyfish Unlock the Secret of Immortality? 2012-11-28T23:26:58Z In the midst of this inextricable mass of plants and sea weed, I noticed some charming pink halcyons and actiniae, with their long tentacles trailing after them, and medusae, green, red, and blue. Twenty Thousand Leagues under the Sea It is the evidence of a bloodless thing, a rotund and turreted medusa, the leader of a disorderly procession, soundless and feeble as becomes beings almost as impalpable as the sea itself. My Tropic Isle Not even a twentieth part of those medusae, or one in each thousand of those sparks among the foam. Two Years Ago, Volume II. Huge medusas, exquisitely tinted, floated on the water like spread parasols. An Antarctic Mystery “The immortal medusa is the most miraculous species in the entire animal kingdom,” he said. Can a Jellyfish Unlock the Secret of Immortality? 2012-11-28T23:26:58Z I also noticed large medusae floating between the reeds. Twenty Thousand Leagues under the Sea In the lower marine animals, especially certain medusae, the body consists to the extent of more than ninety-nine per cent of sea-water, and has not one per cent of solid matter. The Evolution of Man — Volume 2 We also find this remarkable phenomenon among other animals, such as the graceful, bell-shaped zoophytes, which we call polyps and medusae. The Evolution of Man — Volume 1 If we place a very irritable medusa on a pewter plate, and strike against the plate with any sort of metal, the slight vibrations of the plate are sufficient to make this animal emit light. Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 1 With two fine metal picks, he began to perforate the medusa’s mesoglea, the gelatinous tissue that composes the bell. Can a Jellyfish Unlock the Secret of Immortality? 2012-11-28T23:26:58Z A medusa begets a ciliated larva, the larva begets a polyp, the polyp begets a strobila, and the strobila begets a medusa again; the cycle of reproduction being completed in the fourth generation. Life and Habit Sometimes hundreds of these smaller medusae might be seen floating together in the deep glass bowls, or jars, or larger vessels with which Agassiz's laboratory at Nahant was furnished. Louis Agassiz: His Life and Correspondence The sea washed up a medusa to the shore—give it me! The Malady of the Century Sometimes, in galvanising the medusa, the phosphorescence appears at the moment that the chain closes, though the exciters are not in immediate contact with the organs of the animal. Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 1 After Kubota poked it six times, the medusa behaved like any stabbing victim — it lay on its side and began twitching spasmodically. Can a Jellyfish Unlock the Secret of Immortality? 2012-11-28T23:26:58Z But in the case of the strobila we say that it is not changed, but dies, and is no part of the personality of the medusa. Life and Habit You will be pleased to know that here, as well as at the North, tiaropsis is the medusa of a campanularia. Louis Agassiz: His Life and Correspondence Shrimps, small fish, lobsters, various molluscs, and medusae form his diet. Swiss Family Robinson If we rub wood with the body of a medusa, and the part rubbed ceases shining, the phosphorescence returns if we pass a dry hand over the wood. Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 1 By the fourth day the tentacles were gone, and the organism ceased to resemble a medusa entirely; it looked instead like an amoeba. Can a Jellyfish Unlock the Secret of Immortality? 2012-11-28T23:26:58Z How small and unimportant is the difference between the changes which a caterpillar undergoes before becoming a moth, and those of a strobila before becoming a medusa. Life and Habit Especially has the minute examination of the thickness of the test in echinoderms revealed to me unexpected relations between the sea-urchin and the medusa. Louis Agassiz: His Life and Correspondence HACKEL, on fissiparous reproduction. -on cells. -on the double reproduction of medusae. -on inheritance. The Variation of Animals and Plants under Domestication — Volume 2 We entered on a zone where the whole sea was covered with a prodigious quantity of medusas. Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 1 But the process also occurs naturally when the medusa grows old or sick. Can a Jellyfish Unlock the Secret of Immortality? 2012-11-28T23:26:58Z You will have seen his curious paper on certain medusae reproducing themselves by seminal generation at two periods of growth. More Letters of Charles Darwin — Volume 2 I hope my two papers on the medusae, forwarded this year, have reached you, and also one upon the classification of insects, as based upon their development. Louis Agassiz: His Life and Correspondence I have heard indirectly of your splendid success with nerves of medusae. More Letters of Charles Darwin — Volume 1 We observed during the night, that, of three species of medusas which we collected, none yielded any light but at the moment of a very slight shock. Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 1 People come because they see him on television and become interested in the immortal medusa and marine life in general. Can a Jellyfish Unlock the Secret of Immortality? 2012-11-28T23:26:58Z I likewise marveled at the numerous medusas, including the most beautiful of their breed, the compass jellyfish, unique to the Falkland seas. Twenty Thousand Leagues Under the Sea For the last few days I have been especially occupied with the development of the medusae. Louis Agassiz: His Life and Correspondence Otherwise, the meaning would be "a small medusa." A Record of Buddhistic kingdoms: being an account by the Chinese monk Fa-hsien of travels in India and Ceylon (A.D. 399-414) in search of the Buddhist books of discipline Among the medusae something similar exists in the disposition of the marginal appendages and the ocelli. Louis Agassiz: His Life and Correspondence Several interesting medusae have been already observed; among others, the entire metamorphosis and alternate generation of a new species of my genus tiaropsis. Louis Agassiz: His Life and Correspondence Mr. Clark, one of my assistants, has made very good drawings of all its stages of growth, and of various other hydroid medusae peculiar to this coast. Louis Agassiz: His Life and Correspondence |
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