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  2. Frog battery - Wikipedia

    en.wikipedia.org/wiki/Frog_battery

    Bird's diagram of a frog battery, 1848 The first frog battery was constructed by Eusebio Valli in the 1790s with a chain of 10 frogs. Valli had difficulty understanding all of his own results; he followed Luigi Galvani in believing that animal electricity (or galvanic electricity ) was a different phenomenon from metal-metal electricity (or ...

  3. Glass frog - Wikipedia

    en.wikipedia.org/wiki/Glass_frog

    Some glass frogs show parental care: in many species, glass frog females brood their eggs during the night the eggs are fertilized, which improves the survival of the eggs, while in almost a third of species, glass frog males stay on guard for much longer periods. After they hatch, the tadpoles fall into the waters below. [16]

  4. Tuatara - Wikipedia

    en.wikipedia.org/wiki/Tuatara

    Skull diagram in top down and side-on views. Unlike the vast majority of lizards, the tuatara has a complete lower temporal bar closing the lower temporal fenestra (an opening of the skull behind the eye socket), caused by the fusion of the quadrate/quadratojugal (which are fused into a single element in adult tuatara) and the jugal bones of ...

  5. Frog - Wikipedia

    en.wikipedia.org/wiki/Frog

    Warty frog species tend to be called toads, but the distinction between frogs and toads is informal, not from taxonomy or evolutionary history. An adult frog has a stout body, protruding eyes, anteriorly-attached tongue, limbs folded underneath, and no tail (the tail of tailed frogs is an extension of the male cloaca

  6. Charged particle - Wikipedia

    en.wikipedia.org/wiki/Charged_particle

    In physics, a charged particle is a particle with an electric charge. For example, some elementary particles, like the electron or quarks are charged. [1] Some composite particles like protons are charged particles. An ion, such as a molecule or atom with a surplus or deficit of electrons relative to protons are also charged particles.

  7. Hyalinobatrachium fleischmanni - Wikipedia

    en.wikipedia.org/wiki/Hyalinobatrachium_fleischmanni

    Also known as the Northern Glass Frog, this frog's physical features include primarily green skin, which also reflects visible light typically at 400 nm to 700 nm, [5] pale yellowish spots, yellow fingertips and translucent skin covering its stomach. A sheet of guanine stretches over several internal organs, but leaves others parts such as the ...

  8. Tadpole - Wikipedia

    en.wikipedia.org/wiki/Tadpole

    Anatomy of a wood frog tadpole (Lithobates sylvaticus) As a frog tadpole matures it gradually develops its limbs, with the back legs growing first and the front legs second. The tail is absorbed into the body using apoptosis. Lungs develop around the time as the legs start growing, and tadpoles at this stage will often swim to the surface and ...

  9. African clawed frog - Wikipedia

    en.wikipedia.org/wiki/African_clawed_frog

    The African clawed frog (Xenopus laevis), also known as simply xenopus, African clawed toad, African claw-toed frog or the platanna) is a species of African aquatic frog of the family Pipidae. Its name is derived from the short black claws on its feet. The word Xenopus means 'strange foot' and laevis means 'smooth'.