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Jumping spiders are a group of spiders that constitute the family Salticidae. As of 2019, this family contained over 600 described genera and over 6,000 described species, [ 1 ] making it the largest family of spiders at 13% of all species. [ 2 ] Jumping spiders have some of the best vision among arthropods and use it in courtship, hunting, and ...
Peucetia viridans, the green lynx spider, is a bright-green lynx spider usually found on green plants. It is the largest North American species in the family Oxyopidae. This spider is common in the southern U.S., Mexico, Central America, and in many West Indies islands, especially Jamaica. Lynx spiders are hunters specialized for living on plants.
Ben Day process. The Ben Day process is a printing and photoengraving technique for producing areas of gray or (with four-color printing) various colors by using fine patterns of ink on the paper. It was developed in 1879 [ 1] by illustrator and printer Benjamin Henry Day Jr. (son of 19th-century publisher Benjamin Henry Day ). [ 2]
Many spider species are colored so as to merge with their most common backgrounds, and some have disruptive coloration, stripes and blotches that break up their outlines. In a few species, such as the Hawaiian happy-face spider, Theridion grallator , several coloration schemes are present in a ratio that appears to remain constant, and this may ...
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One limitation of dark-field microscopy is the low light levels seen in the final image. This means that the sample must be very strongly illuminated, which can cause damage to the sample. Dark-field microscopy techniques are almost entirely free of halo or relief-style artifacts typical of differential interference contrast microscopy. This ...
Trichonephila clavata, also known as the Joro-spider (ジョロウグモ, Jorō-gumo), is a spider in the Trichonephila genus. Native to East Asia, it is found throughout China, Japan (except Hokkaidō ), Korea, and Taiwan, and has been spreading across North America since the 2010s. It is venomous, but it rarely bites humans and its venom is ...
Orb-weaver spiders are members of the spider family Araneidae. They are the most common group of builders of spiral wheel-shaped webs often found in gardens, fields, and forests. The English word "orb" can mean "circular", [ 1] hence the English name of the group. Araneids have eight similar eyes, hairy or spiny legs, and no stridulating organs.
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