Spiders Arachnids Arthropods Invertebrates. animal Kingdom. Wildlife. Fauna. Zoology.

Within the arthropods represents the group with four pairs of articulated legs.

It is the most important group of arachnids, which includes all spiders, with about 30,000 species.

They have segmented bodies, but the segments are not as visible; The most obvious is the division of the body into "head" (actually, head and thorax joined together forming the cephalothorax) and abdomen.
The abdomen is attached to the cephalothorax by a peduncle.
They have on their head joints terminated in characteristic nails (chelycer) that have poisonous glands.
They have 3 pairs of rows in the abdomen that secrete silk, with which they build the fabrics.
The spiders also use the thread to move and leave another silk thread when moving.

In our own house we can find ourselves kind of like this:

View from the bottom, we can appreciate:
the differentiation between cephalothorax and abdomen
its four narrownesses, on each side, start from the cephalothorax the same as the chelicers. The abdomen, larger, has a gland that produces the silk that it uses to build its fabrics.

She is a great hunter and here is a sample of her food.

This spider is about 6 mm long from the "head" to the end of the abdomen.
Some of her victims are twice as big as her.

Some spider species:

Garden spider body: 18 mm
Black widow (very poisonous) body 11 mm
Crab spider 8 mm
Grass spider 20 mm
Tarantula (poisonous) body: 3 cm



Other information about fauna in Aragón:

A small list of species in Aragon would be the following:

Vertebrates	Invertebrates
Mammals Red squirrel. Bear. Fox. Artiodactyl Ungulates Deer. Wild pig. Birds Classification of Birds Storks. Capercaillies. Reptiles Amphibians Urodelos.    Marbled Triton.    Webbed Triton.    Pyrenean triton. Anurans. Fishes	Metazoans Arthropods Myriapods Insects Arachnids Spiders Crustaceans Annelids Worm Molluscs Asquelmintos Platelmintos Celentereos Porifera Protozoa
images about the fauna in Aragon.    photographs on invertebrates.    beneficial animals for agriculture.



Also Aragon enjoys a diverse and varied Nature where passing by plants, animals, Geology, or landscapes we can arrive at a fantastic bestiary that lives in its monuments.

The information will not be complete without a stroll by its three provinces, with shutdown in some of its spectacular landscapes like Ordesa, the Moncayo, Monegros or by opposition the Ebro.

Also you can dedicarte to the intangible ones: from the legend compilation that also does to universal Aragon.