[gpderetta]

> That's a different issue. Spiders, as all insects, don't learn.

But portia spiders do seem to exhibit learning behavior. While they have preprogrammed strategies for common preys, they do attempt to catch unfamiliar preys and seem to learn from their mistakes and come up with new strategies.

[YeGoblynQueenne]

That's planning, not learning.

An instance of learning would be training a spider to play Go, say.

[Teever]

What is the difference between planning and learning, and would you consider a human that is unable to learn something like general relativity because they are mentally retarded to be unable to learn?