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  • Half of all amphibian species at risk of extinction
    A new study finds that more than 1,000 amphibian species poorly known to science are likely facing extinction, adding to the already identified 4,200 species the UN says are in peril 1 of 23
  • Scientists have found that the existing populations of a . . .
    This action would likely increase genetic diversity and enhance the long-term survival prospects of the amphibians In conclusion, the action that most likely improves the long-term survival of the amphibian species is to build ponds in the areas of dry land to promote interbreeding between the separated populations (Option D)
  • Lizards and Skinks - Oregon Department of Fish Wildlife
    Lizards are more like ancient reptiles than either snakes or turtles There are more than 2,500 species of lizards known in the world and they range from legless, snake-like varieties to the better known, four-legged type with five toes on each foot and scaly skin Most lizards lay eggs but some give birth to live young
  • Underestimation of Species Richness in Neotropical Frogs . . .
    BackgroundAmphibians are rapidly vanishing At the same time, it is most likely that the number of amphibian species is highly underestimated Recent DNA barcoding work has attempted to define a threshold between intra- and inter-specific genetic distances to help identify candidate species In groups with high extinction rates and poorly known species boundaries, like amphibians, such tools
  • How does the loss of amphibian species impact the ecosystems . . .
    Amphibians prey on insects and serve as prey for various animals Without amphibians, the transfer of energy in an ecosystem is disrupted and other species become threatened Humans use compounds in amphibian skin to develop important pharmaceuticals like painkillers and antibiotics If amphibians disappear, these drugs may disappear along with
  • The Organization of the Central Nervous System of Amphibians
    Extant amphibians (or Lissamphibia) are one of the most diverse radiations of terrestrial vertebrates They constitute a class of anamniote vertebrates divided into three orders with markedly distinct morphologies and life styles: Anura (or Salentia), frogs and toads that have short, tailless bodies with long, powerful hind limbs mainly adapted for jumping locomotion; Caudata (or Urodela
  • Confronting Amphibian Declines and Extinctions - Science
    Amphibian declines and extinctions are global and rapid: 32 5% of 5743 described species are threatened, with at least 9, and perhaps 122, becoming extinct since 1980 (1) Species have disappeared across the entire taxonomic group and in nearly all regions of the planet These figures are probably underestimates as entire clades of species are threatened For example, of the 113 species of





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