Spider
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[edit | edit source]
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[edit | edit source]
Spiders exhibit a range of behaviors that include predation, courtship, and the building of webs or other types of spider silk structures[4].
Classification[edit | edit source]
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[edit | edit source]
References[edit | edit source]
- ↑ "Spider". Britannica. Retrieved 20 April 2020.
- ↑ "Spider". Britannica. Retrieved 20 April 2020.
- ↑ "Spider". Britannica. Retrieved 20 April 2020.
- ↑ "Spider". Britannica. Retrieved 20 April 2020.
- ↑ "Spider". Britannica. Retrieved 20 April 2020.
External links[edit | edit source]
- Spider at Britannica
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