Why do spiders spread silk?

Some spiders weave a net into a net or a tube wall is quite a feat, which is the case of huge house spiders. Other spiders like garden spiders weave into extremely beautiful veins. The kind spider

Picture 1 of Why do spiders spread silk?
Many spiders catch prey with spider webs, insects are caught in it without a chance to escape the spider's hand.

Some spiders weave a net into a net or a tube wall is quite a feat, which is the case of huge house spiders. Other spiders like garden spiders weave into extremely beautiful veins. These "boss" spiders are often hidden in a silk tube near their net. The insect is caught in the net, often stumbling and losing its balance, the spider rushes forward and grabs the prey.

The garden spider web is very sticky, flying insects will stick to the net. It struggled in escaping but moved the spider to run and caught it on the spot. The tropical spiders are quite sturdy, so much so that birds can be caught.

Update 16 December 2018
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