A small Jumping Spider Hunting a Cockroach

                                                                             
Jumping Spider captured a cockroach
Spiders are the very common eight legged arthropods seen in our house / surroundings, even these can be seen on the slopes of Mount Everest. Jumping spider is a type of spider. The jumping spider family (Salticidae) contains more than 500 described genera and about 5,000 described species, making it the largest family of spiders. Jumping Spiders are generally carnivorous animal and have body length between 1 to 22 mm. These spiders can be found in gardens, walls of our resident or buildings, forests, etc. Jumping Spiders generally hunts small and large insects to collect their body fluid as food. But many species have been known to include nectar in their diets, and very species feeds primarily on plant matter.. Jumping spiders have some of the best vision among arthropods and use it in courtship, hunting, and navigation. Although they normally move slowly, most species are capable of very agile jumps, notably when hunting, but sometimes in response to sudden threats. Jumping spiders are generally recognized by their eye pattern. All jumping spiders have four pairs of eyes with one pair being their particularly large anterior median eyes. Jumping spiders have four pairs of eyes; three secondary pairs that are fixed and a principal pair that is movable. This jumping spider's main ocelli (center pair) are very acute. The outer pair is "secondary eyes" and there are other pairs of secondary eyes on the sides and top of its head. Combined with the other eyes, it gives the spider a near 360-degree view of the world. These eyes help the spider to find, detect and attack the prey. Jumping spiders are generally diurnal, active hunters. Their well-developed internal hydraulic system extends their limbs by altering the pressure of body fluid (hemolymph) within them. This enables the spiders to jump without having large muscular legs like a grasshopper.

The small Jumping spider has successfully captured a cockroach that is larger and stronger than it is. The cockroach has tried to escape, but the spider immobilized it using the venom it injected, and the legs helped it to hold its position with respect to the prey. After the few minutes, the prey (here Cockroach) dies due to the injected venom. Then the Jumping spider intakes the body fluid (as food) from the body of the dead prey. It goes back to its  web after the completion of the hunting.

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                                                         Information  source: Google.com , Wikipedia.org, Internet, etc.


                                         
                              

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