| 单词 | free-swimming |
| 例句 | His hour-long tours were filled with spotted toadfish and free-swimming eels, goliath grouper and rainbow parrotfish, stingrays and eagle rays and occasional cruise-bys from the majestic hawksbill turtle. Add adrenaline to a beach vacation and save the Belize Barrier Reef by hunting lionfish 2015-12-30T05:00:00Z Just a South Pacific coral reef pulsing with a carnival of color, including a rare sighting of a free-swimming moray eel, a hawksbill sea turtle, and immense schools of snapper, convict tangs and jacks. Diving into the tranquility of Tahiti 2020-02-20T05:00:00Z Currently, the researchers are refining their imaging techniques and experimental platform for a follow-up study to examine free-swimming sperm under similar conditions. Sperm adjust their swimming style to adapt to fluctuating fluid conditions 2023-11-01T04:00:00Z Living throughout the world’s temperate and tropical seas, stalked barnacles begin life as free-swimming larvae that ride ocean currents until they settle, often en masse, on driftwood, a ship’s hull, or other floating objects. Barnacles could help solve the mystery of Malaysian Airlines Flight 370 2023-08-23T04:00:00Z “Instead we relied on a spotter plane to find free-swimming sharks and radioed their locations to a research vessel,” the Aleutian Dream. Great White Sharks Are Surging off Cape Cod 2023-07-02T04:00:00Z Both gametes are produced by the polyp, which can fuse to give rise to a free-swimming planula larva. Fundamentals of Biology 2015-01-01T00:00:00Z The monogeneans are external parasites mostly of fish with life cycles consisting of a free-swimming larva that attaches to a fish to begin transformation to the parasitic adult form. Concepts of Biology 2013-04-25T00:00:00Z What the finding means is that the ancestor of all animals, including sponges, already had a well-developed nervous system, and it probably was free-swimming, Cartwright adds. The Closest Living Relative of the First Animal Has Finally Been Found 2023-05-17T04:00:00Z On a scientific hunch, she wanted to check what happened to normally thrashing, free-swimming sperm. Quick-acting male birth control drug shows promise in the lab 2023-02-14T05:00:00Z But unlike most others in that group, it does not undergo metamorphosis from a free-swimming larva to a fixed-to-the-bottom, or sessile, adult. A Strange Creature Discards Genes to Make a Better Heart 2022-02-03T05:00:00Z Scyphozoans live most of their life cycle as free-swimming, solitary carnivores. Fundamentals of Biology 2015-01-01T00:00:00Z Early larval development occurs within the sponge, and free-swimming larvae are then released through the osculum. Concepts of Biology 2013-04-25T00:00:00Z In a study published last month in the journal iScience, a group of paleontologists have shown that those eyes gave Callichimaera remarkably sharp vision and a likely lifestyle as a free-swimming predator. This Ancient Crab Had Unusually Huge Eyes 2022-01-23T05:00:00Z The team also learned that free-swimming Chinook salmon from the Columbia River system were carrying a different type of the virus. Virus spreads from BC fish farms to wild Chinook salmon, new study finds 2021-05-27T04:00:00Z Instead it lives its entire life as a tiny free-swimming creature, and it does so inside a balloon made up of a transparent sheet of cellulose, the main constituent of plants’ cell walls. A Strange Creature Discards Genes to Make a Better Heart 2022-02-03T05:00:00Z Rotifers are typically free-swimming and truly planktonic organisms, but the toes or extensions of the foot can secrete a sticky material forming a holdfast to help them adhere to surfaces. Fundamentals of Biology 2015-01-01T00:00:00Z The world developed its first truly complex food webs, from wormlike organisms that slurped up bacteria in the sediment to free-swimming predators festooned with compound eyes and grasping appendages. Earth’s Biodiversity Bursts Do Not Follow Expected Pattern 2021-01-14T05:00:00Z "Hooray! Her new calf appeared healthy and precocious, swimming vigorously alongside its mother in its second day of free-swimming life," the group said on its website. Orca who carried dead calf for 17 days in 'tour of grief' gives birth again 2020-09-07T04:00:00Z This machine constantly monitors and predicts the movements of a free-swimming larva, and moves the imaging platform to compensate for the animal’s movement, keeping the brain in the microscope’s field of view. Brain states behind exploring and hunting revealed 2019-12-17T05:00:00Z But the free-swimming Oikopleura evolved a different way to filter feed. A Strange Creature Discards Genes to Make a Better Heart 2022-02-03T05:00:00Z They do not show movement over large distances like other free-swimming marine invertebrates. Fundamentals of Biology 2015-01-01T00:00:00Z As expected, the free-swimming octopuses chose to spend most of their time on the other side of the tank, as far as possible from the caged ones. Rolling Under the Sea: Scientists Gave Octopuses Ecstasy to Study Social Behavior 2018-12-01T05:00:00Z I have never seen a free-swimming fish leap and wriggle as if to dislodge something. Are we wrong to assume fish can't feel pain? 2018-10-30T04:00:00Z The authors recorded videos of free-swimming larvae, and categorized each of the animals’ movements to generate thorough descriptions of behaviours during exploration and exploitation phases. Brain states behind exploring and hunting revealed 2019-12-17T05:00:00Z This structure enables the animal to thrive as a free-swimming filter feeder. A Strange Creature Discards Genes to Make a Better Heart 2022-02-03T05:00:00Z The monogeneans are ectoparasites, mostly of fish, with simple lifecycles that consist of a free-swimming larva that attaches to a fish to begin transformation to the parasitic adult form. Fundamentals of Biology 2015-01-01T00:00:00Z Some free-swimming sea animals like bat rays or lobsters may shift their routines. Under the sea, marine heat waves can wreak havoc on wildlife 2018-08-15T04:00:00Z In an unprecedented intervention with a wild, free-swimming whale, federal scientists on Sunday attempted to feed live hatchery chinook salmon to a starving orca. Scientists attempt to feed chinook to ailing orca — but did she eat? 2018-08-13T04:00:00Z “This will by no means meet her nutritional needs but it would enable us to administer oral medication that can’t be administered in any other way to a free-swimming animal.” Researchers fear it may be too late to save J50, the ailing baby killer whale 2018-08-07T04:00:00Z In this way, losing genes that give rise to the more complex cylindrical heart provided the animal with a better solution to its free-swimming, filter-feeding life. A Strange Creature Discards Genes to Make a Better Heart 2022-02-03T05:00:00Z Because of the difficulty of conducting a medical exam on a free-swimming whale shark, researchers only obtained two blood samples, which haven’t yet been tested. Cracking the mysteries of the elusive, majestic whale shark 2018-02-28T05:00:00Z Captures of free-swimming Atlantics in both saltwater and freshwater in Washington, Alaska and British Columbia have been confirmed for years, a 2005 study by the Pacific States Marine Fisheries Commission shows. Puget Sound region’s Atlantic salmon fish farms could be headed for final harvest 2018-02-26T05:00:00Z But pteropods — tiny, free-swimming sea snails that are an important component at the base of the food chain — seem to be especially vulnerable to the corrosive effects of acidic water. Sea change : Nature : Nature Research 2017-10-10T04:00:00Z Antibiotics that easily dispatch free-swimming cells often prove useless against the same types of cells when they’ve hunkered down in a film. Bacteria Use Brainlike Bursts of Electricity to Communicate 2017-09-09T04:00:00Z Perhaps the eggs sank to the bottom of the ocean, where conditions favored their fossilization over the preservation of squishy, free-swimming adults. Time is running out to determine if China holds the world’s oldest animal fossils 2017-05-05T04:00:00Z But Dr Tung and his colleagues are interested in what drives free-swimming sperm to flock together, or fly apart. Sperm bunch up when swimming in gloopy fluid - BBC News 2016-03-17T04:00:00Z They analyzed numerous fossils of the creature, named Tullimonstrum gregarium, and determined it was not a segmented worm or a free-swimming slug, as once hypothesized, but rather a type of jawless fish called a lamprey. What is a Tully Monster? Scientists finally provide an answer 2016-03-16T04:00:00Z Like their close relatives, sea anemones and jellyfish, corals begin their life as free-swimming larvae. Creating corals that can survive climate change 2015-10-19T04:00:00Z Based on recent interviews with participants in cage and free-swimming shark viewing tours in Haleiwa, people are motivated by thrill-seeking, curiosity and a desire to overcome their fear. Shark tours serve up face time with fearsome fish 2015-08-02T04:00:00Z He selected some of the ephyra, the free-swimming, larvae of the moon jellyfish, which resemble tiny starbursts, each with eight symmetrical arms radiating out of a disk-shaped body. Jellyfish "Gooeyness" Could Be a Model for Self-Healing Robots 2015-06-24T04:00:00Z After all, cash in hand is worth more than free-swimming fish in the sea. Fisheries Management Generates Market-Beating Returns 2015-06-18T04:00:00Z Still, she says it’s unclear how well the new approach can transfer to large, free-swimming whales. A Breathalyzer for dolphins? 2014-10-24T04:00:00Z Amphipods are the most abundant of free-swimming creatures in the deepest depths. Pushing frontiers of deep sea exploration 2014-07-16T04:00:00Z Like most marine invertebrates, the larval stages of tubeworms are free-swimming, but the cues for larval settlement and the triggers for metamorphosis are mysterious. [Report] Marine Tubeworm Metamorphosis Induced by Arrays of Bacterial Phage Tail–Like Structures 2014-01-30T19:26:10.264Z There is no safe method for capturing a free-swimming large whale. How Harmful for Whales Is Shipping? [Excerpt] 2013-08-09T14:15:01.067Z Optegenetics alone is not adequate to make a free-swimming medusoid respond to light with meaningful behaviors. What Would It Take To Really Build An Artificial Jellyfish? 2012-07-25T20:45:00.237Z The majority of the Crustacea are hatched from the egg in a form differing more or less from that of the adult, and pass through a series of free-swimming larval stages. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7 "Crocoite" to "Cuba" 2012-01-22T03:00:24.397Z The Navy program achieved major breakthroughs that made it possible, for the first time, to house free-swimming divers on the seabed, and at far greater depths than ever thought possible. Opinion: The Other Final Frontier 2012-01-21T22:24:30Z Many benthic marine animal populations are established and maintained by free-swimming larvae that recognize cues from surface-bound bacteria to settle and metamorphose. [Report] Marine Tubeworm Metamorphosis Induced by Arrays of Bacterial Phage Tail–Like Structures 2014-01-30T19:26:10.264Z It reproduces by giving rise to many little buds, ciliated on the upper surface like free-swimming, hypotrichous infusoria. The Biological Problem of To-day Preformation Or Epigenesis? The Basis of a Theory of Organic Development 2011-08-29T02:01:04.170Z Copepods -- Small free-swimming marine crustaceans, many of which are fish parasites. When antibiotics no longer work 2011-08-04T22:45:00Z These two must have been octopods if they were anything; the word "polypus" thus especially designates it, and moreover, the free-swimming cuttles and squids would be helpless if stranded on the shore. Sea Monsters Unmasked and Sea Fables Explained 2011-07-11T02:00:07.857Z This decrease in performance ability fits in with observations based on pop-up satellite tagging—fast vertical movements appear to be greatly suppressed in the OMZ when measured by free-swimming squid. Squid Studies: Correction, Connections and Calamar 2011-06-27T22:15:00.223Z "They can be quick over a short distance, but they're not a free-swimming ocean fish like a tuna or a mackerel," he said. "Eat'em" strategem for lionfish invasion in Florida 2010-12-29T18:44:52Z Pluteus, a free-swimming larval stage in the development of echinoderms, 54. The Biological Problem of To-day Preformation Or Epigenesis? The Basis of a Theory of Organic Development 2011-08-29T02:01:04.170Z In 2007, the scientists deployed a free-swimming robot that mapped the canyon’s head in greater detail. Paradise for Fishermen Becomes One for Scientists 2010-07-12T21:17:00Z More recent tagging developments relate to marks which will be visible on a free-swimming animal. Whales, Dolphins, and Porpoises of the Western North Atlantic A Guide to Their Identification The shell is usually light in substance or lightened by air-chambers in correlation with the free-swimming habits of the Cephalopoda. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" As the larva of this fresh-water mussel is free-swimming, its propagation is much favoured by canals. The History of the European Fauna The free-swimming embryo of an aquatic annelid, being ovate and not ciliated all over, moves with one end foremost; and its differentiations proceed in conformity with this contrast of circumstances. Essays: Scientific, Political, & Speculative, Vol. I It was the charm of a free-swimming existence that divorced him from a vegetarian diet. "Wee Tim'rous Beasties" Studies of Animal life and Character Many free-swimming rotifers practise letisimulation when disturbed or when threatened by what they consider impending danger. The Dawn of Reason or, Mental Traits in the Lower Animals Because the enemies of fish are numerous and free-swimming," was the answer, "and also because fish produce an enormous amount of eggs. The Boy With the U. S. Fisheries It is possible that little marine life, except free-swimming forms, would have been able to live within the Russian area of this sea. The History of the European Fauna 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 The blastula, or hollow sphere of segmentation cells, usually ciliated, was reminiscent of the planæa, an ancestral free-swimming form whose nearest living relation is the spherical Magosphæra. Form and Function A Contribution to the History of Animal Morphology That is to say, they are free-swimming larv� which pass through an open-water period before they settle down on the shore, and eventually creep up on to dry land. The Outline of Science, Vol. 1 (of 4) A Plain Story Simply Told The body is small, globular or oval and either free-swimming or fastened by one of the two flagella. Marine Protozoa from Woods Hole Bulletin of the United States Fish Commission 21:415-468, 1901 These free-swimming cells, which apparently are formed only to reunite with each other, are called zoöspores, while the organism which results from their fusion is known as a zygospore. Taboo and Genetics A Study of the Biological, Sociological and Psychological Foundation of the Family The larvae are free-swimming and have the pelvic fins elongated into filaments. Encyclopaedia Britannica, 11th Edition, Volume 2, Part 1, Slice 1 The young barnacle just from the egg is a six-legged, free-swimming nauplius, very like a young prawn or crab, with a single eye. Composition-Rhetoric These free-swimming larvae of the Ascidia have been known for a long time. The Evolution of Man — Volume 2 Movement, free-swimming or gliding, with especial tendency to get under clumps of foreign matter. Marine Protozoa from Woods Hole Bulletin of the United States Fish Commission 21:415-468, 1901 A perfectly similar appendage, "a most delicate tube or ribbon," was found by Darwin in free-swimming pupae of Lepas australis on the last joints of the "prehensile antennae." Facts and Arguments for Darwin As a rule the germ develops into a stalked polyp, out of which the free-swimming Medusa is formed. The Story of Evolution In its next larval stage it has six pairs of swimming feet, two compound eyes, and two antennae or feelers, and still lives an independent free-swimming life. Composition-Rhetoric The attachment is effected by a number of out-growths, usually three, which can be seen even in the free-swimming larva. The Evolution of Man — Volume 2 When the free-swimming Amphioxus-larva is three months old, it abandons its pelagic habits and changes into the young animal that lives in the sand. The Evolution of Man — Volume 2 |
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