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Amphibian

Amphibians (class Amphibia) are a taxon of animals that include all tetrapods (four-legged vertebrates) that do not have amniotic eggs. Amphibians (from Greek αμφις "both" and βιος "life") 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). more...

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There are about 5,700 living species of amphibians. The study of amphibians and reptiles is known as herpetology. The fear of amphibians and reptiles is known as herpetophobia.

History of amphibians

Amphibians developed with the characteristics of pharyngeal slits/gills, a dorsal nerve cord, a notochord, and a post-anal tail at different stages of their life. They have persisted since the dawn of tetrapods 390 million years ago in the Devonian period, when they were the first four-legged animals to develop lungs. During the following Carboniferous period they also developed the ability to walk on land to avoid aquatic competition and predation while allowing them to travel from water source to water source. As a group they maintained the status of the dominant animal for nearly 75 million years. Throughout their history they have ranged in size from the 3 foot long Devonian Ichthyostega, to the slightly larger 5 foot long Permian Eryops, and down to the tiny Brachycephalus didactylus (Brazilian Gold Frog) and Eleutherodactylus iberia from Cuba, with a total length of 9.6-9.8 millimeters. Amphibians have mastered almost every climate on earth from the hottest deserts to the frozen arctic, and have adapted to climatic change with ease.

  • Solomon Berg Martin, Biology
  • Duellman/Trueb, Biology of Amphibians

Read more at Wikipedia.org


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Mens Russia Amphibian 200m Colorful Ship Dial 17J Ussr Diver Watch Retro CompassMens Russia Amphibian 200m Colorful Ship Dial 17J Ussr Diver Watch Retro Compass $89.99 Vostok Amphibian Komandirskie Custom Bezel 60Min/12Hr Combo Black Pvd Us1260BlkpVostok Amphibian Komandirskie Custom Bezel 60Min/12Hr Combo Black Pvd Us1260Blkp $27.95
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Smith & Wesson Men's Amphibian Commando Sww-1100 Black stainless casing. Black fSmith & Wesson Men's Amphibian Commando Sww-1100 Black stainless casing. Black f $47.10 Was:  Previous Price $50.11 *Us Seller* Soviet Vostok WindUp Watch, Amphibian, Antimagnetic 1980s #1034*Us Seller* Soviet Vostok WindUp Watch, Amphibian, Antimagnetic 1980s #1034 $69.00
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12 Hour Insert Knurled Edge Steel Bezel for Vostok Amphibian Komandirskie Watch12 Hour Insert Knurled Edge Steel Bezel for Vostok Amphibian Komandirskie Watch $36.95 Russia Amphibian Automatic Shock Resistant Men's Vintage Watch Running!Russia Amphibian Automatic Shock Resistant Men's Vintage Watch Running! $40.00
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New listing
		Vostok Soviet Russian Cccp Amphibian Kgb Dial Automatic/Mechanical Watch, No R.New listing Vostok Soviet Russian Cccp Amphibian Kgb Dial Automatic/Mechanical Watch, No R. $56.00 Vostok watch amphibian Used AutomaticVostok watch amphibian Used Automatic $40.00
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Vintage Russian Vostok Amphibian WatchVintage Russian Vostok Amphibian Watch $46.99 *Us Seller* Soviet Diver Watch, Amphibian, Antimagnetic Vostok 70s 2214 #1242*Us Seller* Soviet Diver Watch, Amphibian, Antimagnetic Vostok 70s 2214 #1242 $62.30 Was:  Previous Price $89.00
Wwii Era Parker Watch Co. Amphibian Wristwatch Watch WorkingWwii Era Parker Watch Co. Amphibian Wristwatch Watch Working $45.00 Vostok Amphibian Komandirskie Custom Bezel 60Min Blue Pvd Ublu60BlupvdVostok Amphibian Komandirskie Custom Bezel 60Min Blue Pvd Ublu60Blupvd $33.95
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New Vostok Amfibia Amphibia Amphibian Russian Mechanical Watch - Ships from UsaNew Vostok Amfibia Amphibia Amphibian Russian Mechanical Watch - Ships from Usa $92.50 Amphibian Commando WatchAmphibian Commando Watch $65.86
Vostok Amphibian Classic Russian Military Automatic Men's Watch 420289Vostok Amphibian Classic Russian Military Automatic Men's Watch 420289 $79.99 Was:  Previous Price $99.99 Silver/White Vostok Amphibian Komandirskie Custom Paddle Watch HandsSilver/White Vostok Amphibian Komandirskie Custom Paddle Watch Hands $25.99
Green Russian Soviet mechanical men's watch Vostok 2209 Wostok Amphibian Diver☭Green Russian Soviet mechanical men's watch Vostok 2209 Wostok Amphibian Diver☭ $85.00 60Min Reduced Diameter Blue Pvd Lumed Bezel Vostok Amphibian Komandirskie 38Blup60Min Reduced Diameter Blue Pvd Lumed Bezel Vostok Amphibian Komandirskie 38Blup $22.95
Diver Watch Strap Band 22Mm Silicone Rubber Orange Custom Fit Vostok AmphibianDiver Watch Strap Band 22Mm Silicone Rubber Orange Custom Fit Vostok Amphibian $22.95 Vintage Russian Diver Watch Navy Military Watch Vostok AmphibianVintage Russian Diver Watch Navy Military Watch Vostok Amphibian $99.00
White/Blue Vostok Amphibian Komandirskie Custom Watch Hands "Telum" Ph2BlwWhite/Blue Vostok Amphibian Komandirskie Custom Watch Hands "Telum" Ph2Blw $20.99 Soviet Military Vostok Amphibian Submarine Diver men's diver's watch Diving NavySoviet Military Vostok Amphibian Submarine Diver men's diver's watch Diving Navy $29.99
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Vostok Amphibian Komandirskie Custom Bezel 60Min/12Hr Combo Matte Us1260MtVostok Amphibian Komandirskie Custom Bezel 60Min/12Hr Combo Matte Us1260Mt $50.00 Made in Russia Amphibian Automatic Shock Resistant Men's Vintage WatchMade in Russia Amphibian Automatic Shock Resistant Men's Vintage Watch $71.97 Was:  Previous Price $119.95
Vostok Amphibian Komandirskie Custom Bezel Blk-Gold/Copper Dash Polished UgblkpoVostok Amphibian Komandirskie Custom Bezel Blk-Gold/Copper Dash Polished Ugblkpo $31.95 Compass / Pvd Coated Steel Bezel Vostok Amphibian Komandirskie Watch / LimitedCompass / Pvd Coated Steel Bezel Vostok Amphibian Komandirskie Watch / Limited $50.00
Smith & Wesson Amphibian Commando Watch #Sww-1100Smith & Wesson Amphibian Commando Watch #Sww-1100 $52.95 Vostok Amphibian Komandirskie Custom Bezel Blk-Gold/Copper Black Pvd UgblkpvdVostok Amphibian Komandirskie Custom Bezel Blk-Gold/Copper Black Pvd Ugblkpvd $28.95
Vostok Amphibian Scuba Dude (710634) Military Russian Watch Black DiverVostok Amphibian Scuba Dude (710634) Military Russian Watch Black Diver $89.99 Vostok Amphibian 420 Cosmonaut Soviet Dive WatchVostok Amphibian 420 Cosmonaut Soviet Dive Watch $100.00
Vintage Kgb Amphibian Automatic Mechanical Watch Soviet Union Ussr RussianVintage Kgb Amphibian Automatic Mechanical Watch Soviet Union Ussr Russian $9.99 Vostok Amphibian Antimagnetic 200m Vintage Diver Man Watch Soviet Ussr Us SellerVostok Amphibian Antimagnetic 200m Vintage Diver Man Watch Soviet Ussr Us Seller $69.99
Spring Wire Lock For Vostok Amphibian Komandirskie Watch BezelsSpring Wire Lock For Vostok Amphibian Komandirskie Watch Bezels $3.95 Vostok Amphibian Komandirskie Custom Bezel 60Min/12Hr Combo Polished Us1260PolVostok Amphibian Komandirskie Custom Bezel 60Min/12Hr Combo Polished Us1260Pol $50.00
Blue/Black Brushed Stainle
00000E5F
ss Steel Bezel for Vostok Amphibian Komandirskie WatchBlue/Black Brushed Stainle 00000E5F ss Steel Bezel for Vostok Amphibian Komandirskie Watch $50.00 Vintage Russian Vostok Amphibian Albatross Diver Watch *Us Seller* #1522Vintage Russian Vostok Amphibian Albatross Diver Watch *Us Seller* #1522 $99.00
60Min Reduced Diameter Brushed Lumed Bezel Vostok Amphibian Komandirskie 38Pbg60Min Reduced Diameter Brushed Lumed Bezel Vostok Amphibian Komandirskie 38Pbg $21.95 Vostok Komandirskie Russian Diver Amphibian Hand Wind Wrist Watch RunningVostok Komandirskie Russian Diver Amphibian Hand Wind Wrist Watch Running $99.99
Smith & Wesson Men's Sww-1100 Amphibian Commando Black Glowing Dial Rubber BandSmith & Wesson Men's Sww-1100 Amphibian Commando Black Glowing Dial Rubber Band $66.47 Amphibian Commando Watch 3Atm Japanese Movement Date Display Stainless SteelAmphibian Commando Watch 3Atm Japanese Movement Date Display Stainless Steel $61.85
Vostok Oficerskie Wwii 40th Anniversary Amphibian Soviet Dive WatchVostok Oficerskie Wwii 40th Anniversary Amphibian Soviet Dive Watch $100.00 Diver Watch Strap Band 22Mm Silicone Rubber Black Vostok Amphibian Custom FitDiver Watch Strap Band 22Mm Silicone Rubber Black Vostok Amphibian Custom Fit $22.95
New listing
		Smith & Wesson Sww-1100 Black Stainless Men's Amphibian Commando Watch (148)New listing Smith & Wesson Sww-1100 Black Stainless Men's Amphibian Commando Watch (148) $40.00 12 Hour Insert 38Mm Blue Pvd Bezel Vostok Amphibian Komandirskie 3812Insblu12 Hour Insert 38Mm Blue Pvd Bezel Vostok Amphibian Komandirskie 3812Insblu $21.95
Campco Smith & Wesson Sww-1100 Amphibian Commando WatchCampco Smith & Wesson Sww-1100 Amphibian Commando Watch $50.50 12H/60M Blue Pvd Coated Steel Bezel Vostok Amphibian Komandirskie Watch/Limited12H/60M Blue Pvd Coated Steel Bezel Vostok Amphibian Komandirskie Watch/Limited $50.00
Vostok Amphibian Classic 420 Used Watch Clean Bezel ModVostok Amphibian Classic 420 Used Watch Clean Bezel Mod $30.00 Silver/Black Matte Steel Bezel Vostok Amphibian Komandirskie Watch / LimitedSilver/Black Matte Steel Bezel Vostok Amphibian Komandirskie Watch / Limited $50.00
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Prices current as of last update, 12/05/19 1:35pm.

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