This is an orb weaving spider. And

This is an orb weaving spider. And this is a bat. The bat uses its hearing to help it to fly at night without hitting anything. Well...almost anything. This spider's web is huge and very sticky. Suddenly,the bat is trapped. And that is that.
Different spiders make different kinds of silk. Each type of silk has a different use. Sometime their webs are in the shape of long threads. These threads have a very sticky liquid all over them. When an insect touches the thread, the liquid covers it, and it stop the insect from getting away.