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Amphibian references on wikipedia
Amphibian
Amphibians (class Amphibia), such as frogs, toads, salamanders, newts, and caecilians, are ectothermic (or cold-blooded) animals that metamorphose from a juvenile, water-breathing form to an adult, air-breathing form. Though amphibians typically have four limbs, the Caecilians are notable for being limbless. Unlike other land animals (amniotes), amphibians lay eggs in water, as their fish ancestors did. Amphibians are superficially similar to reptiles.
Amphibians (class Amphibia), such as frogs, toads, salamanders, newts, and caecilians, are ectothermic (or cold-blooded) animals that metamorphose from a juvenile, water-breathing form to an adult, air-breathing form. Though amphibians typically have four limbs, the Caecilians are notable for being limbless. Unlike other land animals (amniotes), amphibians lay eggs in water, as their fish ancestors did. Amphibians are superficially similar to reptiles.
| Description | |||
 Amnh.org | Amnh.org | ||
| Amphibianark.org | Amphibian Ark | ||
| Amphibians.org | Home | ||
| Amphibiaweb.org | AmphibiaWeb | ||
| Atlantabotanicalgarden.org | Atlanta Botanical Garden | ||
| Bl.uk | Bl.uk | ||
| Doi.org | The Digital Object Identifier System | ||
| Globalamphibians.org | Globalamphibians.org | ||
| Guardian.co.uk | Latest news, comment and reviews from the Guardian | guardian.co.uk | ||
| Handle.net | HANDLE.NET - The Handle System | ||
| Hbw.com | Home | Lynx Edicions | ||
| Livingunderworld.org | Livingunderworld.org - A web project about amphibians | ||
| Marlonstein.com | Marlon Stein | ||
| Nature.com | Nature Publishing Group : science journals, jobs, and information | ||
| Reference.com | Homepage | Reference.com | ||
| Reuters.com | Reuters.com | ||
| Savethefrogs.com | SAVE THE FROGS! | ||
| Sciencemag.org | Science/AAAS | Scientific research, news and career information | ||
| Usgs.gov | Welcome to the USGS - U.S. Geological Survey | ||
| Whose-tadpole.net | Whose-tadpole.net | ||
