Spider

Spiders (order Araneae) are air-breathing arthropods that have eight legs and chelicerae with fangs that inject venom. They are the largest order of arachnids and rank seventh in total species diversity among all other groups of organisms. Spiders are found worldwide on every continent except for Antarctica, and have become established in nearly every habitat with the exception of air and sea colonization. As of 2008, approximately 40,000 spider species, and 109 families have been recorded by taxonomists; however, there has been confusion within the scientific community as to how all these families should be classified, as evidenced by the over 20 different classifications that have been proposed since 1900.

Famous quotes containing the word spider:

“This Frey seems thus to us:
Hells Spider gets
His intrails spun to whip Cords thus,
And wove to nets,
And sets.”
—Edward Taylor (1645–1729)

“By straightening out and lifting a forefinger,
He pointed with his hand from where it lay
Like a white crumpled spider on his knee:”
—Robert Frost (1874–1963)

“But chief to heedless flies the window proves
A constant death; where gloomily retired,
The villain spider lives, cunning and fierce,
Mixture abhorred! Amid a mangled heap
Of carcases in eager watch he sits,
O’erlooking all his waving snares around.”
—James Thomson (1700–1748)