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  2. Amphibian - Wikipedia

    en.wikipedia.org/wiki/Amphibian

    Amphibians are ectothermic, anamniotic, four-limbed vertebrate animals that constitute the class Amphibia. In its broadest sense, it is a paraphyletic group encompassing all tetrapods excluding the amniotes (tetrapods with an amniotic membrane , such as modern reptiles , birds and mammals ).

  3. Frog - Wikipedia

    en.wikipedia.org/wiki/Frog

    Being cold-blooded, frogs have to adopt suitable behaviour patterns to regulate their temperature. To warm up, they can move into the sun or onto a warm surface; if they overheat, they can move into the shade or adopt a stance that exposes the minimum area of skin to the air.

  4. List of amphibians - Wikipedia

    en.wikipedia.org/wiki/List_of_amphibians

    Amphibians are ectothermic, tetrapod vertebrates of the class Amphibia. All living amphibians belong to the group Lissamphibia . They inhabit a wide variety of habitats , with most species living within terrestrial , fossorial , arboreal or freshwater aquatic ecosystems .

  5. Amphiuma - Wikipedia

    en.wikipedia.org/wiki/Amphiuma

    In captivity, the predatory behavior amphiuma display depends on the presence or lack of food. Amphiuma will remain inactive when food is absent, and will become more active once food has been introduced into their habitat. [12] This shows that the amphiuma, although ancestral to many amphibia, has developed a deductive approach to its predation.

  6. Consumer-resource model - Wikipedia

    en.wikipedia.org/wiki/Consumer-resource_model

    Niche models are a notable class of CRMs which are described by the system of coupled ordinary differential equations, [7] [8] = (), =, …,, = + = (), =, …,, where (, …,) is a vector abbreviation for resource abundances, is the per-capita growth rate of species , is the growth rate of species in the absence of consumption, and is the rate per unit species population that species depletes ...

  7. Labyrinthodontia - Wikipedia

    en.wikipedia.org/wiki/Labyrinthodontia

    Traditionally considered a subclass of the class Amphibia, modern classification systems recognize that labyrinthodonts are not a formal natural group exclusive of other tetrapods. Instead, they consistute an evolutionary grade (a paraphyletic group ), ancestral to living tetrapods such as lissamphibians (modern amphibians) and amniotes ...

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  9. Lissamphibia - Wikipedia

    en.wikipedia.org/wiki/Lissamphibia

    The Lissamphibia (from Greek λισσός (lissós, "smooth") + ἀμφίβια (amphíbia), meaning "smooth amphibians") is a group of tetrapods that includes all modern amphibians. Lissamphibians consist of three living groups: the Salientia ( frogs and their extinct relatives), the Caudata ( salamanders and their extinct relatives), and the ...