How to use tadpoles in a sentence

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Sentence Examples The tadpoles of some species, such as the bullfrog, take as long as two years to metamorphose into young frogs. These amphibians, like modern frogs and salamanders, hatched from eggs and spent their larval period in the water as tadpoles. Axillary amplexus typically results in long strings of eggs being laid in ponds or streams, which hatch into type IV tadpoles. For example anuran tadpoles cannot disperse from their natal pond during development. The average masses of the small bullfrogs and green frogs were determined by weighing 60 haphazardly chosen tadpoles from the populations used. In Rhinoderma darwinii, males retain the tadpoles in their vocal sacs until the young metamorphose. The tadpoles used in this experiment feed primarily on periphyton by scraping the surfaces of tank walls and leaves. Observations were spaced at least 10 min apart and consisted of a count of the number of tadpoles active and resting inactively. I would get my boys out of the classroom, and we'd be in a field all day long chasing tadpoles and pollywogs and looking at swamp water. These tadpoles have large frontal eyes and probably direct their prey capture strikes visually. Some lay their eggs in damp leaf litter, some create nests of foam, and some even carry their eggs or tadpoles in pouches on their backs. Despite their enormous size as adults, eggs and tadpoles of goliath frogs are about the same size as those of other frogs. Thyroid hormones were extracted from tadpoles following previously described methods. A biologist at the University of Arizona, Rosen studies what insects and fish prey on bullfrog tadpoles. The eggs of most frogs hatch into aquatic, free-swimming larvae, commonly known as tadpoles. From 1996 to 1998, I collected tadpoles of 13 anuran species from eastern North America. Introducing water plants and scavengers such as water snails and tadpoles into a pond is an easier and less expensive solution. Also see fishlike tadpoles that will later metamorphose into American bullfrogs, sprouting legs and losing their tails. Ordinarily, between 6 and 11 percent of leopard frog tadpoles survive and metamorphose into adults. Trilling frog tadpoles can metamorphose within 17 days, pumping the same hormone through their systems that induces premature births in humans. Show More Sentences Over a period of several days, the male frog watches the eggs hatch into tiny tadpoles. The tadpoles of Amolops species are torrent-adapted, and have suctorial disks on their bellies. Snails and tadpoles are nature's garbage disposals, feeding on decaying plant material and fish waste. Notochords are the axial skeleton of invertebrate chordates, of agnathan fish, and of amphibian tadpoles. But for me the term always conjures up childhood memories of rooting about in an old canal in my wellingtons and putting tadpoles in a jam jar. The water in the pond was crystal clear with only the aforementioned tadpoles swimming in the water. Axial movements in tadpoles are regulated by a diverse array of muscle activity in a manner similar to anguilliform fishes. The young snakes prey on recently hatched steelhead trout and chinook salmon and on the tadpoles of yellow-legged frogs. Biologists now find that slightly elevated UV exposure reduces the chance that tadpoles will become frogs. These species tend to have shorter larval periods on average when compared to tadpoles that develop in more permanent ponds. As the tadpoles become frogs, the gills initially used to breathe are replaced with lungs. The cells divide and change until they have a head and short tail, like tadpoles. They will also prey on crayfish, frogs, tadpoles, and other aquatic dwellers. We have observed that green frog tadpoles react less strongly to predators at very low resource levels. In several species, a parent remains with the non-feeding tadpoles at the nest. Most tadpoles are suspension feeders, filtering out tiny particles while continuously pumping water. In amphibian tadpoles, however, the function of the axial muscles appear to be for lateral bending alone. These ponds often dry out, killing the tadpoles, before they can change into toadlets and leave the pond. Later in the summer, 13 toadlets were observed outside the pond showing that some of the tadpoles had survived the difficult conditions. Additionally, these tadpoles become toadlets unusually early, so they are out of the water and hopping around faster than most other frogs. Show More Sentences Those that survive to become tadpoles often have misshapen mouths and are unable to feed properly. This overall morphological simplicity, in theory, makes tadpoles good models for exploring how vertebrates control undulatory movements. Inside the pouch, the tadpoles live on the yolk leftover from their hatching. Two classes of these high-affinity binding reagents are currently used: aptamers and tadpoles. When developed, the young tadpoles wriggle free of the egg clump and drop into the water to continue to develop into froglets. The tadpoles have come to life, the dog has recovered, the kitchen's illuminated by daffodils. A secretion prevents the young tadpoles from being decomposed by the gastric acids and enzymes. The tadpoles were left to develop naturally in the tanks over the summer until the test ended in September. The researchers also gathered evidence that atrazine exposure affected the hypothalamic-pituitary-thyroid axis in the tadpoles. In the mother's stomach, the tadpoles secreted a substance that prevented their being digested. The hatching success and survival of tadpoles were determined for each cage. They are aggressive predators that feed on insects and other invertebrates, tadpoles and even small fish. Only the tadpoles that were exposed to cercariae developed deformities. The algae-rich water teems with tadpoles, elodea, and finger-size fish. Whooping crane young are fed dragonfly larvae, insects and tadpoles. Just before metamorphosis, the tadpoles weigh only a fraction of an ounce. Biology: Richard Wassersug for Comparison of the taste of tadpoles in the dry season in Costa Rica. Spadefoot toad tadpoles and other species that develop in ephemeral pools have evolved traits that allow for successful development in an unpredictable environment. Eggs and tadpoles of Rheobatrachus develop in the stomach of the mother. This increased force could permit wood frog tadpoles to scrape a type of periphyton that is more resistant to harvest or to harvest periphyton more efficiently. Show More Sentences The free-swimming tadpoles produced by sexual reproduction live only a few days, during which time they can be spread by tidal and storm currents to form new colonies. But while eggs and tadpoles thus escape becoming a meal for a predator, they must develop into froglets by the time the pools have dried up in late June or early July. The mother later returns, repeatedly, to each of her tadpoles, which have reduced beaks and denticles, and deposits unfertilized eggs for them to eat. She pointed out damselfly larva, water beetles, tadpoles, backswimmers, dragon fly larva and snails as they circled around in our tiny sample of the marsh. One of only four aquatic frogs known to live in Australia, this frog inhabits the continent's driest areas, hunting in gilgais after rain for insects, shrimps and tadpoles. Visiting a local conservation area may afford you the opportunity of observing some pond life such as tadpoles and polliwogs. King Neptune's Law states that neophytes go from being tadpoles to shellbacks after the crossing. When Briggs and King first succeeded in cloning tadpoles, they transferred embryo cell nuclei into enucleated eggs. They also feed on small crayfish, minnows, tadpoles, worms, and insects. Nonfeeding tadpoles develop in the inguinal brood pouches of male Assa. Toad tadpoles appear to be distasteful to many predators, and, perhaps as a result of this, are much more often to be seen in open water than those of the common frog. The tadpoles can also turn in much wider arcs, which they do spontaneously, when they initiate swimming from rest, and in the course of normal locomotion. Eggs hatch into tadpoles, which graze on algae for about 9 to 12 weeks, until they are ready to metamorphose into adults. Luckily, the tadpoles mature into toadlets in less than two weeks. I kept tadpoles and frogs, raised orphaned birds successfully, learned to tell time by the sun, and the temperature by the rate at which crickets and katydids chirped. Three of 11 pools surveyed dried before any tadpoles could metamorphose. Eggs are laid in gelatinous strings in the water and later hatch out into tadpoles. Measures were taken to protect the rare tailed frog and its habitat, including building a specially-designed creek channel and relocating by hand several hundred tadpoles and adult frogs. Predation on peridomestic mosquitoes by Hylid tadpoles on Grand Bahama Island. The type 2 and type 3 iodothyronine deiodinases play important roles in coordinating development in Rana catesbeiana tadpoles. Show More Sentences Another study investigated whether the use of nitrogenous fertilisers affects the development of common toad tadpoles. Some salamanders and toads have tadpoles that occur in two forms, one of which has a specialized head that allows it to cannibalize other tadpoles of the same species. The contrasting realm of the goddess Venus, whose orgiastic house parties waylay the troubadour Tannhäuser, takes the form of a circular cage inhabited by furry, Neanderthal-like figures and several giant tadpoles. In the northern part of its range in North America, the tadpoles of the bullfrog L. catesbeianus require three years to undergo their development. In addition, the New York university research centre has shown that tadpoles suffer malformations and do not reach adulthood in cases of prolonged exposure to artificial light. Although it targets tadpoles, there's a chance that adults could also carry it and serve as amphibian Typhoid Marys. This is why the announcement earlier this month that ZSL's London Zoo had succeeded in rearing the first ever captive Lake Oku clawed frog tadpoles and juveniles is so important. The widely spaced eyes of the tadpoles migrate to the top of the head, the mouth and internal organs change shape, lungs form, gills diminish and the wide-finned tail is absorbed after legs grow. The tadpoles also exude noxious substances which deter fishes from eating them but not the great crested newt. This axis helps regulate development, and the team found that at least half of the exposed tadpoles were unable to metamorphose into juvenile animals by the end of the experiment. Aquatic invertebrates that feed on toad tadpoles include dragonfly larvae, diving beetles and water boatmen. The strings of eggs absorb water and swell in size, and small tadpoles hatch out after two to three weeks. It was also the first lab to report on the effects of some toxic substances on tadpoles, and it is currently collaborating on studying the effects of low-level pharmaceuticals on these tiny creatures. It eats soft-bodied invertebrates such as slugs, worms, snails, leeches, as well as tadpoles, frogs, other snakes, mice and freshwater and marine fish. Children study insect larvae and tadpoles in paper cups inside a classroom instead of having their knowledge filled out by examining the complex environment in which these creatures actually live. They go on to larger items, such as tadpoles and snails, as they grow stronger, and finally begin dabbling for the seeds and tubers, or fleshy roots, of a variety of aquatic plants, as the adults do at this time of year. When the eggs hatched the number of tadpoles was counted. Among Darwin frogs, it is the male who swallows and stores the developing tadpoles in his vocal sac until juvenile frogs emerge. Most of his research has been on amphibians such as tadpoles. When tadpoles of southern leopard frogs and green tree frogs were put in water tainted with that level of chlorothalonil, all 18 died within 24 hours. Show More Sentences Wormcast butties, tubes of glue, Pans of slugs in slimy stew, Bogey burgers, brown rat roast, Fat Black tadpoles squashed on toast, Washed down with a cup of string. Applying this protocol to germinally transgenic tadpoles, we were able to reveal the actions of the preemergent herbicide acetochlor through increased TH responses. No animals were dissected to identify deformities of the mouth or internal organs and no tadpoles were assessed for mouthpart abnormalities or other deformities. I explained that male Darwin's frogs carry tadpoles in their vocal sacs. Studies have shown that the Welsh populations mostly predate freshwater crustaceans, though fears exist that this large anuran may also feed on the tadpoles of native species. A final treatment contained no snails, tadpoles, or water bugs to test for direct effects of grazers and indirect effects of water bugs on periphytic algae. On the tails of some tadpoles the melanophores which were scattered on the surface of the body are visible, in the same way as in the tadpoles of the xenopids. Differences in developmental rates of tadpoles and in snout-vent length and body mass of metamorphs and juveniles were also analyzed with general linear models. Examples from Classical Literature In life tadpoles from finca La Sumbadora were olive-tan above and dark gray with pale bluish gray irridescent spots ventrally. When disturbed the pelagic tadpoles usually dive and seek shelter amidst vegetation or in mud on the bottom. Descriptions are given of the tadpoles of bufo occidentalis and Hyla bistincta. He stated that color in tadpoles from different localities probably varies with soil color and turbidity of water. I ked 'a' swallered the muddiest water as ever war found in a puddle, an' neyther frogs nor tadpoles would 'a' deterred me. Onc't they wuz tadpoles about as big as lickerish drops, an' after while legs growed on 'em. One which was put into a basin of water with several young tadpoles, killed them all without attempting to eat one. This disruptive coloration seems to be directly associated with the pebble-bottom, stream-inhabiting tadpoles. The cannibal tadpoles are usually careful to eat only nonrelatives, says biologist David Pfennig. Down the warm stream from the pool floated the countless billions of eggs and tadpoles, developing as they drifted slowly toward the sea. When he was tired he lay face-downward on the grass and watched the eager scurrying of minnows and of tadpoles. Some became tadpoles in the pool, some in the sluggish stream and some not until they reached the great inland sea. The average total length of seven hatchling tadpoles is 7.4 mm. After breakfast the men set out to hunt, while the women went to a large pool of warm water covered with a green scum and filled with billions of tadpoles. Find more words! 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What is the opposite of tadpoles? Words that rhyme with tadpoles Translations for tadpoles Use our Sentence Generator Nearby Words tadpole Tadjik tadalafil ta-dah TADA ta-da tae Taegu taekwondo tael taenia taeniae 8-letter Words Starting With t ta tad tadp tadpo tadpol tadpole