What is the mechanism that allows birds to build nests, beavers to build dams, or spiders to spin webs – without anyone teaching them how?

Question

Those are awfully complex structures, I couldn’t make one!

In: 613

Answer 1

A mother skunk had two kids that she named In and Out. Whenever In was in, Out was out. And whenever In was out, Out was in.

One day Out was in but she couldn’t find In anywhere. She looked everywhere for In; up, down, left, right, but she could not find In. Finally she asked Out to find In, and Out went right to where In was hiding. When the mother skunk asked Out how he knew where to find In, he replied…

“Easy. Instinct.”