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  • A nine-family classification of caecilians (Amphibia . . .
    An illustration of a horizontal line over an up pointing arrow Upload An illustration of a magnifying glass A nine-family classification of caecilians
  • An appreciation of the physiology and morphology of the . . .
    Caecilians account for about 4% of known living species of amphibians [28], [188], are adapted to a fossorial, aquatic or semi-aquatic life [105], and tend to be more common in humus-rich soil near water [64] The Gymnophiona are represented by some 150 species distributed across South-East Asia and the American and African tropics [28]
  • Amphibia: Characteristics, Classification and Examples
    Amphibians have separate sexes and usually undergo external fertilization, but salamanders have internal fertilization Their development involves metamorphosis Breeding happens in water and males lack copulatory organs Examples include newts and caecilians Further Reading: All About Frogs
  • The Rise of Amphibians: 365 Million Years of Evolution - BioOne
    These novel developments all concern extant amphibians—a clade named the Lissamphibia that comprises salamanders, frogs, and caecilians However, back at the roots of amphibian evolution, lissamphibians were just one— eventually very successful—offshoot
  • Amphibian Pictures Facts - National Geographic
    Amphibians are small vertebrates that need water, or a moist environment, to survive The species in this group include frogs, toads, salamanders, and newts All can breathe and absorb water
  • Caecilian Animal Facts - Apoda - A-Z Animals
    The reproduction and baby-rearing of caecilians are very interesting All species of these amphibians reproduce using internal insemination The male has a long, tube-like phallodeum used to impregnate the female Each reproductive connection takes two to three hours before the mates separate
  • All Products | USGS Store
    An official website of the United States government Here's how you know





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