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BookmarkAmphibians generally spend part of their time on land, but they do not have the adaptations to an entirely terrestrial existence found in most other modern tetrapods (amniotes).
There are about 5,950 described, living species of amphibians.
The study of amphibians and reptiles is known as herpetology.
Dramatic declines in amphibian populations have been noted in the past two decades from locations all over the world..
For more information about the topic Amphibian, read the full article at Wikipedia.org, or see the following related articles:
Vertebrate — Vertebrates are members of the subphylum Vertebrata (within the phylum Chordata), specifically, those chordates with backbones or spinal columns. ... > read more
Salamander — Salamander is the common name applied to approximately 500 amphibian vertebrates with slender bodies, short legs, and long tails. The moist skin of ... > read more
Frog zoology — About 400 million years ago, some members of the sarcopterygian group of fish moved onto land. These became the first amphibians. Today, these ... > read more
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