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Hello Sir, I am a post graduate student in the field of biotechnology from India, but there are some questions right from my schooling days that are still left unanswered for me. We were taught in the schools that Birds live in nest, spiders in their web but i really wonder do these birds and spiders really build there nests and webs for living or they are made for other purposes like Nests are build for laying eggs and bringing up there young ones and webs are build by the spiders for catching prey?
Answer 1:

Not all birds live in nests, and not all spiders in webs - but yes, you are right: the chief purpose of a bird's nest is in raising young, or in catching prey, for the web of a spider. They do also live in these places, but that's for convenience rather than requirement.



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