Spider

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Spider

A spider

A spider is an arthropod that belongs to the order Araneae. They are the largest order of arachnids and rank seventh in total species diversity among all orders of organisms[1]. Spiders are found worldwide on every continent except for Antarctica, and have become established in nearly every habitat with the exceptions of air and sea colonization[2].

Anatomy

Spiders differ from other arthropods in their bodies, which are divided into two tagmata: the prosoma, or cephalothorax, and the opisthosoma, or abdomen[3].

Behavior

Spiders exhibit a range of behaviors that include predation, courtship, and the building of webs or other types of spider silk structures[4].

Classification

Spiders are classified in the order Araneae, one of the three orders in the larger group of arachnids. The other two orders are Scorpiones (scorpions) and Opiliones (harvestmen)[5].

See also

References

  1. Spider(link). {{{website}}}. Britannica.
  2. Spider(link). {{{website}}}. Britannica.
  3. Spider(link). {{{website}}}. Britannica.
  4. Spider(link). {{{website}}}. Britannica.
  5. Spider(link). {{{website}}}. Britannica.

External links

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