Spiders

Spiders live on every continent and in almost all terrestrial habitats capable of supporting life. Some spiders have ventured into the world of freshwater, and a few can even tolerate salt water. There is a huge variety in color among species, and sizes can vary from smaller than a grain of rice to exceeding the span of an adult's hand. Many are beautifully marked and fascinating to look at. For some, such as the crab spiders, the coloration serv...