Eight legs and eight eyes from the corner looking at you. Italian female photographer Iryna captured an excellent series of Spiders. We invite you to see her wonderful work.
The body of a spider is divided into two parts: the cephalothorax composed of durable material - chitin, and abdomen. A small tube connects these two parts.
All spiders are predators, eating mainly insects. Many species catch prey by the web. Catching prey, the spider kills her with poison, and injects digestive juices into it. After a certain time (usually several hours), the spider sucks the resulting nutrient solution.
Spiders have several sensory organs to sense the environment in which they live. Spiders have no ears. Spider hears with very tiny hairs thrichobotria, situated on its feet. With the help of hairs the spider is able to very accurately determine the location of the radiation of sound by interpreting the movement of air produced by this sound.
The eyes of spiders from different families are very different. Do spiders that hunt without a more agile network, like the wolf spiders (Lycosidae), spiders, rysyam (Oxyopidae)-racers and spiders (Salticidae), a well-developed vision. Spider-racers can see almost as well as humans. Experiments have shown that they can even distinguish colors. Cave spiders that live in the dark, do not see very well or see very badly. They are completely dependent on the sounds and sensations.
Spiders on the ground moved with legs. Serebryanka or water spider to move in the water column using the swimming setae on the hind legs.
Spiders are dioecious. Males are often smaller and more colorful than females. Males can be easily identified on the pedipalps , rather, on an oblong bulbs at their ends, which they use to introduce sperm into the open genitals of female.
The body length is different representatives varies considerably, from a millimeter to nearly a dozen centimeters. The smallest spider - Patu digua reaches only 0.37 mm. The largest spiders - tarantulas terafoza Blond body length can reach 9 cm, and the extent feet - up to 25 cm.