Do spiders catch fish and how do spiders hunt

Probably not, first of all, the fish is in the water, the spider is on the web, and he can't control the fish in the water.

There are many fine hairs on the body and 6 pairs of appendages of the fishing spider, and whenever the fishing spider enters the water from the air, due to the effect of surface tension, Lunchang will produce a lot of bubbles on the surface of these hairs. In this way, the fishing spider cleverly uses its body characteristics and the principle of air pressure to dive into the water with an "oxygen cylinder". Fierce by nature, it generally lives on the rock walls of the water surface, mainly feeds on plankton and insects on the water surface, and is also a master of hunting small fish quickly.

Fishing spiders have many fine hairs on their bodies and 6 pairs of appendages, and when they enter the water from the air, many bubbles will be generated on the surface of these hairs due to surface tension. In this way, the fishing spider cleverly uses its body characteristics and the principle of air pressure to dive into the water with an "oxygen cylinder". Fierce by nature, it generally lives on the rock walls of the water surface, mainly feeds on plankton and insects on the water surface, and is also a master of hunting small fish.

The spider has a strong diving ability, sometimes diving for nearly 1 hour, therefore, fishing often becomes its "main business", and preying on insects has become its "side business". Fishing spiders don't build webs, the surface of the water is their webs. When an insect falls to the surface of the water, the ripples caused by the struggle are transmitted through the surface of the water to the feet of the fishing spider.

The wax and fishing spiders have several whisker hairs on their feet, which are its sensory hairs, like the ears of fishing spiders, which play the role of hearing, so biologists call them "auditory hairs".

The way spiders hunt.

1. The spider is a genius architect, and when it builds its web, each spider silk maintains a certain distance, as accurately as measuring it with a ruler.

2. The round web spider feeds on moths, flies, butterflies, grasshoppers and beetles stuck to the spider's web; Like to eat all small prey, the nest must have a fulcrum capable of forming webs, the round web spider relies on its own vertical and open web to hunt, it sprays its own spider silk to wrap the prey, and then gently bites with its fangs, waiting for the prey to die of weakness.

3. When the spider eats, it does not chew the food with its teeth, but uses the digestive juices in the mouth to dissolve the food into gravy before sucking.

Spider species. There are many species of spiders, and there are more than 40,000 species of spiders in nature. These spiders can be broadly divided into three types: hunting spiders, web-building spiders and cave spiders.

The first group will forage for food, and the second group will set up nets and wait for the rabbits. And most of the people who keep them as pets are in the third category: cave spiders.

Cave spiders like to hide in sand or burrows, and build webs at the mouth of the holes, which are not sticky and are purely used to sense the size of their prey and prey on them. <>

Some spiders sneak up and pounce on their prey, while others build traps or elaborate webs to catch food.

They use fangs to inject venom and conquer their prey. Once caught, the prey is wrapped in silk to prevent it from escaping, and the spider uses the sap in its digestive tract to digest the prey. Most spiders feed on other arthropods, however, some, such as fishing spiders, can catch small vertebrates, including fish, frogs, etc.

Spiders feed on insects and are the most abundant predatory predators in terrestrial ecosystems, often forming a gossip-shaped web to hunt in indestructible areas, treetops, grasses, and places where insects often hang out.

Food habits

Spiders feed on insects, other spiders, myriapods, and some spiders also feed on small animals. Jumping spiders have good eyesight and can dive within 30 centimeters to catch their prey, pounce on them, and wait for their prey on flowers similar to their body color. Spiders burrowing in the earth build burrows lined with silk, and the entrance of the burrow has a trap that opens at night to prey on insects that pass through the hole.

Funnel spiders weave funnel webs, and insects cause vibrations when they fall into the web. The spider itself resides in a filament tube with a narrow end that leads into a plant or a crevice in a rock.

If an insect throws a net, it can hear the signal and feed through the vibration of the signal wire. Some spiders stay head-down in the center of the web, waiting for their prey, and when there is prey, they wrap it with silk before biting it and carrying it back to the center of the web or a hidden place to eat or store.

How to prey:

Spider predation is relying on the web to catch the prey, the spider weaves the web and returns to the center of the web to wait for the prey, the spider silk has a strong adhesion, the prey struggles violently after hitting, the spider in the center can sense, the spider will inject toxic digestive enzymes after catching the prey, first poison the prey Xian Changyou, and then drag the prey to the center of the web.

When the prey is unable to struggle, the spider will use its abdomen to spit out spider silk and wrap the prey firmly around its whole body until the prey dies, so that the prey cannot escape the spider's palm.

Spider Lifestyle:

The lifestyle of spiders can be divided into two categories, namely nomadic and sedentary, nomadic people, hunting everywhere, predators, no fixed residence, no webs, no burrowing, no nesting spiders, scaly arachnidae, bear spiders and most tarantulas, etc., sedentary type some webs, some burrowing, some nesting, as a fixed residence, such as wall money, stone spiders, etc.

Spiders seem to be polite, all those who live independently, individuals maintain a certain distance between each other, do not invade each other, compared with ordinary insects, spiders are long-lived brothers, most spiders complete a life history, generally 8 months to 2 years, male spiders are short-lived, and die soon after mating.

Others such as water spiders and cunning spiders can live for 18 months, burrowing tarantulas can live for 2 years, cancer spiders can live for more than 2 years, and bird-catching spiders have a lifespan of up to 20 to 30 years.

Cave spider, in the web during the day, at night at the entrance of the hole, waiting for the opportunity to hunt or go out to forage, the male spider digs a shallow pit under the clods, the burrowing tarantula digs a vertical deep hole in the ground, the dancing spider also adds a live cover at the entrance of the hole, this kind of live cover is composed of a plurality of silk layers, the hole of the spider is up to 1 meter deep, the spider body is small, the poison is strong, once the bite of the cave rabbit, four minutes will die.

Spiders generally hunt by building webs.

Spiders secrete mucus through protrusions at the tips of silk sacs, which can congagulate into very thin filaments when exposed to air. Webs made of silk are highly sticky and are the main means of predation for spiders.

For insects that stick to the net, spiders will first inject a special liquid jujube digestive enzyme into the prey. This digestive enzyme causes insects to stun, convuls, and die, and liquefies their bodies, which feed spiders by sucking.

Although spider webs are complex, they can generally be woven within 1 hour, and most of them are completed before dawn. Spiders are oviparous, and most male spiders are devoured by female spiders after mating with female spiders, becoming food for female spiders.

How spiders build webs:

The spider finds a foothold from a tree, draws out many filaments long enough to reach the opposite side, and the silk drifts along with the wind, and then it touches the anchorage point of the spider silk with its feet all the time. If any of the threads can't be pulled, then the threads are already wrapped around the trees opposite, and the "heavenly rope" is erected.

Like the pillars of a house, it glues a few more strands back and forth on this supporting line that serves as a spider's web, making it into a thick "cable". Then, under this thick "cable", a second "cable" was erected in parallel. The spider crawled around, and the web was erected on these two "cables".