Anurans are amphibians that are characterized by having a short body and by the fact that the tail disappears in an adult state.
To this Order belong frogs and toads.
The front legs are less developed than the hind legs, adapted for jumping.
In males there are organs specialized in the production of sounds.
Fertilization is external and in metamorphosis the adult stage differs greatly from the larval form.
Wide mouth with teeth and protractile tongue almost always.
The eyes have two fixed lids and one mobile.
Anurans hunt insects with their tongue, projecting it quickly.
Anurans are divided into ranidos (frogs), hyids (tropical tree frogs), pipids (American pipes) and jesters (toads).
Toads are chubby in shape, poorly adapted to jumping.
They have no teeth and the skin is warty with poisonous glands.
There are about 1,500 species around the world.
A small list of species in Aragon would be the following:
images about the fauna in Aragon.|
photographs on invertebrates.
beneficial animals for agriculture.
Ebro | Landscape | Monegros | Moncayo | Ordesa
Zh2o | Photografies
Document | Nature in Aragon
The pasapues project is an extension of the Aragón project is like that, and tries to collect and relate all possible types of documentary information about Aragon: texts, books, articles, maps, illustrations, photographs, narrations, etc., and proceed to its publication and diffusion.
zoology, reproduction, physiology, metazoans, vertebrates, frogs, amphibians, ecology, zoogeography, water, moisture, wetlands, river, mountain, stone, land, air, food
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