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  • 29. 3C: Evolution of Amniotes - Biology LibreTexts
    The first amniotes evolved from their amphibian ancestors approximately 340 million years ago during the Carboniferous period The early amniotes diverged into two main lines soon after the first amniotes arose The initial split was into synapsids and sauropsids Synapsids include all mammals, including extinct mammalian species
  • Initial diversification of living amphibians predated the . . .
    caecilians to the exclusion of frogs and suggested that the early evolutionary history of living amphibians was as-sociated with the Mesozoic continental fragmentation of the supercontinent Pangaea (Feller and Hedges 1998) Par-adoxically, some distributional patterns and some data from the fossil record (Estes and Wake 1972; Estes and
  • McGraw Hill Education
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  • 69% average decline in wildlife populations since 1970, says . . .
    WASHINGTON, D C (October 12, 2022) - Monitored populations of vertebrates (mammals, birds, amphibians, reptiles and fish) have seen a devastating 69% drop on average since 1970, according to World Wildlife Fund’s (WWF) Living Planet Report 2022 Populations in Latin America and the Caribbean have
  • Zoonotic potential and prevalence of Salmonella serovars . . .
    Amphibians are carnivores and eat mostly earthworms, crickets, flies, moths, honeycomb moths, and small cockroaches, albeit bigger species of amphibians could be fed with small fish or mice Salmonella carrying in amphibians is generally asymptomatic These pathogens are often isolated from frogs and toads than newts and salamanders, which can
  • Evolution of insects - Wikipedia
    Evolution has produced astonishing variety of appendages in insects, such as these antennae The most recent understanding of the evolution of insects is based on studies of the following branches of science: molecular biology, insect morphology, paleontology, insect taxonomy, evolution, embryology, bioinformatics and scientific computing
  • Does a Moderately Warming Climate Compensate for the Negative . . .
    Abstract Simple Summary Both the warming climate and ultraviolet-B radiation are notable environmental factors affecting tadpole development However, the phenotypes of tadpoles living at high altitudes may be improved by moderately warming temperatures, reducing or eliminating the negative effects of oxidative damage caused by cool temperatures or strong ultraviolet-B radiation





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