Opinions expressed by Forbes Contributors are their own. I write about the world of biology. There are over 45,000 species of spiders in existence, but here are three that are guaranteed to ..

is the biggest spider in the world, with a leg span reaching up to 12 inches (31 cm). The giant huntsman spider, found in Laos, holds the record for the largest leg span at around 12 inches.

The sun spider is known ... forward-facing jaws, which make up about one-third of their body size. Their body is divided into seven segments, with four pairs of walking legs and two pairs of ...

Jan adds, 'Cribellate silk acts like Velcro, sticking to the legs and bristles of captured insects.' Each type of silk gland is associated with a particular spinneret. No species has all seven, but ...

The ground-dwelling jumping spider is a fearsome beast. It can scale vertical surfaces with ease and spring 25 times its body length to nab prey. Its legs are the eight crucial tools responsible ...

Charges for sclerotherapy typically range from $375 to $750 for both legs. Some doctors charge a set fee; others charge per vein treated. Laser treatment can also eliminate spider veins ...

Spiders are particularly impressive. They have eight legs of surprising strength, especially given their weight and power requirements. Rather than try to create something to match these ...

The Goliath birdeater spider, native to South America's rainforests, is the biggest spider in the world, with a leg span reaching up to 12 inches (31 cm). The giant huntsman spider, found in Laos, ...