Amphibians

__Amphibian Info__
__Photos of Amphibians:__ This is a photo of a Rio Pescado Stubfoot Frog []

[[image:lost-frogs-golden-toad_24389_600x450.jpg]]
Last seen in 1989, Costa Rica's golden toad (pictured) is perhaps the most famous of the "lost amphibians"—virtually extinct animals that may be eking out an existence in a few scattered hideouts, conservationists say. []

 North America's biggest salamanders, hellbenders can grow as long as 2.5 feet (0.7 meter). []

The "stunning" Jackson's climbing salamander (pictured) was said to have disappeared from [|Guatemala] in 1975, conservationists say. []

[] Indiscriminate eaters, Amazon horned frogs can grow to about the size of a small plate.

Amphibian Article
Cite: [] See discussion tab for prompt.media type="custom" key="8745242" align="left"

Amphibian Characteristics Body Structure Body Function Reproduction Metamorphosis Amphibian Texonomy Order Caudata Order Coecilia Order Anura
 * Amphibian: means "Double-life"
 * Live in water and on land
 * Amphibians are a link between fish and reptiles
 * Believed to have evolved from the lobe finned fish.
 * Legs(Tetrapods)
 * Moist skin
 * Primative lungs and diffusion through skin for respiration
 * Gills as tadpoles
 * Three chambered heart
 * Ectotherms (cold-blooded)
 * Body temperature changes with the enviroment
 * External Fertilization
 * External devolopement in aquatic egg.
 * Must return to water to lay eggs!!!
 * A-eggs
 * B-E Tadpole
 * F-adult
 * Kingdom Anomalia
 * Phylum Cordata
 * Subphylum Vertebrata
 * Clas Amphibia
 * Orders: Caudata, Anura, Caecilia
 * Salamanders
 * Amphibians with tails; smooth skin
 * Examples
 * Newts are salamanders that live only in water
 * Mud puppy- largest local salamander (2 feet)
 * Hell bender- largest in world (5 feet)
 * Limbless amphibians
 * Live in tropical climates
 * Usually blind
 * Ex. Caecilians
 * General Info
 * Some are Poisonous
 * Vocal cords produce sounds for mating
 * Frogs (more aquatic)
 * Toads (more terrestrial)