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balladeer    
n. 民谣歌手

民谣歌手

balladeer
n 1: a singer of popular ballads [synonym: {crooner}, {balladeer}]


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  • What Amphibians Can Teach Us About the Evolution of Parental . . .
    Of the highly diverse parental care modes found in amphibians, egg attendance (also known as egg guarding and egg brooding) (Delia et al 2020) is one of the simplest and most widespread care behaviors, which, as a product of convergent evolution, can be found in many species in all three amphibian orders (Crump 2015, Schulte et al 2020)
  • First known amphibian - Guinness World Records
    The earliest known fish potentially capable of walking on land (and so considered a transitional species between fish and tetrapods such as amphibians) is Tiktaalik roseae, a species of sarcopterygian that lived c 375 MYA during the Late Devonian, in what is today the Canadian Arctic Its pectoral fins possessed primitive wristbones not seen
  • Which among the following is more vulnerable to extinction?
    According to the IUCN, 12% of all bird species, 23% of all mammal species, 31% of gymnosperm species and 32% of all amphibian species in the world face the threat of extinction and have the highest percentage of endangered species Amphibians are more vulnerable to extinction out of all the species as they require both terrestrial and aquatic
  • The Crisis - Amphibian Ark
    Amphibians are disappearing from the world Amphibians have suffered the greatest decline of any class of animals in recent times For the past four decades, scientists have been recording rapid population declines and amphibian extinctions all around the world So much so that amphibians are now the most threatened class of all animals
  • Reptile Classification - Types of Reptiles - Reptile Knowledge
    Today, scientists classify reptiles into four major groups known as “orders ” These four reptile orders are as follows: Crocodilia — crocodiles, gharials, caimans and alligators: 23 species; Sphenodontia — tuataras from New Zealand: 2 species; Squamata — lizards, snakes and amphisbaenids (“worm-lizards”): about 7,900 species
  • Prevalence of Batrachochytrium dendrobatidis in Amphibians . . .
    We adopted the following inclusion criteria: (1) the study was aimed to estimate the prevalence of Bd from amphibians inhabiting the natural environment; (2) the study presented the number of examined species and the number of Bd positive species to evaluate the prevalence (the number of individuals positive to Bd total number of individuals
  • How do Amphibians breathe? - (Explained in Detail) - ONLY ZOOLOGY
    Most tadpoles are fully aquatic, though some species of amphibians have tadpoles that are terrestrial The aquatic or semi-aquatic tadpoles have gills during their initial stages of development Tadpoles are born with gills, just like a fish, so that they can breathe underwater





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