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A classic circular form spider's web Infographic illustrating the process of constructing an orb web. A spider web, spiderweb, spider's web, or cobweb (from the archaic word coppe, meaning 'spider') [1] is a structure created by a spider out of proteinaceous spider silk extruded from its spinnerets, generally meant to catch its prey.
Other causes for floaters include cystoid macular edema and asteroid hyalosis. The latter is an anomaly of the vitreous humour, whereby calcium clumps attach themselves to the collagen network. The bodies that are formed in this way move slightly with eye movement, but then return to their fixed position.
Hutchinson's mask is a patient's sensation that the face is covered with a mask or a gauzy network like cobwebs. This medical sign is associated with tabes dorsalis [ 1 ] affecting the trigeminal nerve (fifth cranial nerve CN V ).
Members of the family Theridiidae weave irregular, tangled, three-dimensional webs, popularly known as cobwebs. There seems to be an evolutionary trend towards a reduction in the amount of sticky silk used, leading to its total absence in some species. The construction of cobwebs is less stereotyped than that of orb-webs, and may take several days.
The best men's Halloween costumes in 2024 range from pop culture trends like Bloodpool to classic getups like pirates and firemen. See top last-minute costume ideas.
Darwin's bark spider (Caerostris darwini) is an orb-weaver spider that produces the largest known orb webs, ranging from 900 to 28,000 square centimetres (140 to 4,340 sq in), [2] [3] with bridge lines spanning up to 25 metres (82 ft).
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3. Puzzle Boards. These are plastic or wooden boards that come with compartments or sliding parts that challenge dogs to use their noses, paws, or mouths to reveal hidden treats.