AmphibianLake Traditional Cache

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Hidden : 12/3/2007
Difficulty:
1.5 out of 5
Terrain:
1.5 out of 5

Size: Size: regular (regular)

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Geocache Description:


DK:

Padder udgør klassen Amphibia, der omfatter tre grupper: ormepadder, halepadder eller salamandre og springpadder (frøer og tudser).

Der findes i alt 14 arter af padder i Danmark:

Bjergsalamander, butsnudet frø, grønbroget tudse, grøn frø, klokkefrø, lille vandsalamander, latterfrø, løgfrø, løvfrø, skrubtudse, stor vandsala- mander, spidssnudet frø, springfrø og strandtudse.

Padder er vekselvarme hvirveldyr, det vil sige at deres kropstemperatur svinger med omgivelsernes.
De er kun aktive, når deres kropstemperatur kommer over en vis grænse, og de går i Danmark i dvale om vinteren.

Padderne har i deres bygning og fysiologi træk, der viser tilpasning til overgangen fra vand til land. De har ikke skæl i modsætning til deres nærmeste slægtninge, krybdyrene, og deres æg har ikke nogen hård skal, der beskytter mod udtørring.





Forplantningen og larvernes/haletudsernes opvækst foregår oftest i vand, mens de voksne dyr efter en forvandling (metamorfose) oftest tilbringer størstedelen af deres tid på land. Under væksten ændres gællerespirationen til lungerespiration, dele af karsystemet omformes, overhuden forhorner for at nedsætte udtørring, men stadig tillade hudåndedræt, to par ben udvikles og bevægelsesmåden ændres meget.
 
Den voksne padde har øjenlåg og høreorgan med trommehinde, der ligger i niveau med huden. Tungen er fæstnet fortil i munden.









 
UK:

Frogs are members of the zoological class called Amphibia.
Amphibians are cold-blooded (or poikilothermic) vertebrate animals.
They are one of three types of Amphibians - Anura, also called Salientia, (frogs and toads), caudate (salamanders and newts) and caecilians (worm-like amphibians).

Some frogs have tongues that are long and sticky that can be used to catch bugs.

Frogs have very special skin! They don't just wear it, they drink and breathe through it.



Frogs don't usually swallow water like we do. Instead they absorb most of the moisture they need through their skin.
Not only that, but frogs also rely on getting extra oxygen (in addition to what they get from their lungs) from the water by absorbing it through their skin. Because frogs get oxygen through their skin when it's moist, they need to take care of their skin or they might suffocate.
Sometimes you'll find frogs that are slimy. This is because the frog skin secretes a "slime" that helps keeping it moist. Even with the slimy skin, these frogs need to stay near water.






 

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