(n.) A large sea turtle (Sphargis coriacea), having no bony shell on its back. It is common in the warm and temperate parts of the Atlantic, and sometimes weighs over a thousand pounds; -- called also leather turtle, leathery turtle, leather-backed tortoise, etc.
Example Sentences:
(1) Gold award • Jean Wiener – Haiti "Lifetime achievement" award for 25 years conserving Haiti's coastal ecosystems and securing its first marine protected areas Whitley Fund for Nature awards • Shivani Bhalla – Kenya Warrior Watch: enabling the coexistence of people and lions in northern Kenya • Luis Torres – Cuba Building a national movement to save Cuba's amazing plant life • Fitryi Pakiding – Indonesia Uniting coastal communities to secure the Pacific's last stronghold for nesting leatherback turtles • Marites Gatan-Balbas – Philippines Taking local action to save the world's rarest crocodile • Melvin Gumal – Malaysia Protecting Borneo's iconic great apes: conservation of orangutans in Sarawak • Stoycho Stoychev – Bulgaria The imperial eagle as a flagship for conserving the wild grasslands of south-eastern Bulgaria • Paula Kahumbu – Kenya Hands off our elephants: delivering African leadership to address Kenya's poaching crisis
(2) When hatchling leatherback turtles, Dermochelys coriacea, are unilarerally blindfolded, some circle toward their open eyes and some toward their covered eyes.
(3) According to projections from Brazil’s environment ministry, the tide is expected to spread along 5.5-mile (9km) stretch of the coastline, threatening the Comboios nature reserve, one of the only regular nesting sites for the endangered leatherback turtle.
(4) These turtles prey upon bigger jellyfish, and two leatherbacks have already been sighted off Cornwall this summer.
(5) Necropsy of a stranded adult leatherback turtle (Dermochelys coriacea) determined that the animal died as a result of valvular endocarditis and septicemia.
(6) Endangered loggerhead and leatherback sea turtles are also found in the area.
(7) By suspending lights in the nasal visual field of unilaterally blindfolded green and leatherback turtles (Dermochelys coriacea) it was possible to produce circling in the direction of the covered eye; in contrast, with the light suspended in the temporal field, turning was always in the direction of the uncovered eye.
(8) Sea temperatures of 29.2C determine a 50:50 sex ratio in green, hawksbill, leatherback, loggerhead and olive ridley turtles .
(9) Leatherbacks, which are also in jeopardy, live more in the open ocean where increased ship movements will take their toll through greater injury and death.
(10) A jellyfish boom is good news for they are usually followed by other stunning marine animals, including the ocean sunfish and the leatherback , the largest marine turtle in the world.
Turtle
Definition:
(n.) The turtledove.
(n.) Any one of the numerous species of Testudinata, especially a sea turtle, or chelonian.
(n.) The curved plate in which the form is held in a type-revolving cylinder press.
Example Sentences:
(1) To test the hypothesis that reduced ATP production during anoxia was compensated partly by conserving energy through reduced ion leakage, the rate of K+ leakage was measured in normoxic and anoxic turtle brains in which Na(+)-K(+)-adenosinetriphosphatase was inhibited with ouabain.
(2) Similarity and difference of the nuclei investigated in the turtles with the thalamic anterior nuclei in lizards, with the anterior and intralaminar nuclei in Mammalia are discussed.
(3) Within two weeks of the inoculation, 42% of the turtles tested were positive for HBsAg, and their reciprocal titers as measured by reverse passive hemagglutination (RPHA) and enzyme linked immunoabsorbance assay (ELISA) ranged from 16 to 96.
(4) We have used these anatomical studies on Pseudemys and Mauremys retina to form a catalogue of neural types for the turtle retina in general.
(5) Na+-K+-ATPase activities are 2- to 2.5-fold higher in rat than in turtle brains.
(6) The male is intermediate between the female and the ancestral condition observed in other turtle species.
(7) Sequence identities of sea turtle GH to other species of GH are 89% with chicken GH, 79% with rat GH, 68% with blue shark GH, 58% with eel GH, 59% with human GH, and 40% with a teleostean GH such as chum salmon.
(8) Animals were permitted 3-8 days to come to a new steady-state body temperature (Tb) which ranged 5-32 degrees C. Least squares regression equation for pHi data are: frog blood, 8.184-0.0206 Tb; frog striated muscle, 7.275-0.0152 Tb; turtle blood, 8.092-0.0207Tb; turtle muscle, 7.421-0.0186 Tb; turtle heart, 7.452-0.0122 Tb; turtle liver, 7.753-0.0233 Tb; turtle esophageal smooth muscle, 7.513-0.0141 Tb.
(9) We replicated DNA fingerprints of snapping turtles (Chelydra serpentina) and hypervariable restriction fragments of red-winged blackbirds (Agelaius phoeniceus) to estimate the between-blot and between-lane components of variance in molecular weights of restriction fragments.
(10) With the onset of anoxia, the well-documented rapid increases in GABA found in mammalian brains were not observed in the turtle brain.
(11) Colonic tissue from the turtle (Pseudemys scripta) was exposed in a Ussing chamber to simultaneously applied static and time-varying magnetic fields.
(12) Responses to monochromatic flashes were recorded intracellularly from double cones in the retina of the turtle, Pseudemys scripta elegans.
(13) Applications to turtle (Pseudemys scripta) striated muscle are also explored.
(14) A preparation of turtle (Chrysemys picta and Pseudemys scripta) brain in which the integrity of the intracortical and geniculocortical pathways in visual cortex are maintained in vitro has been used to differentiate the excitatory amino acid (EAA) receptor subtypes involved in geniculocortical and intracortical synapses.
(15) Transducer currents were recorded in turtle cochlear hair cells during mechanical stimulation of the hair bundle.
(16) In this investigation the effects of aldosterone on H+ transport are examined in vitro in turtle bladder, a urinary membrane in which several of the factors controlling H+ transport have been defined.
(17) Particularly notable is the evidence of hemoglobin D: this hemoglobin (alpha D2 beta II2) is found only in birds, and in two cases in turtles.
(18) We conclude that there is homeostasis of K, Ca, and Mg in the extracellular fluids of normoxic turtle brain, as in other vertebrates, but that this homeostasis fails during long-term anoxia.
(19) In contrast, adult turtles had very low Cytox activity throughout the central nervous system.
(20) The general conclusions drawn from these studies is that renin secretion in this primitive vertebrate is similar to that in mammals with respect to renal tubular and electrolyte mechanisms, but unlike all mammals tested these turtles do not possess an intrarenal baroreceptor component in renin control.