If you have genuinely no idea why you know that and where you learned it, you should probably seek medical advice concerning maybe early onset dementia or some

If you have genuinely no idea why you know that and where you learned it, you should probably seek medical advice concerning maybe early onset dementia or some such. There's a good argument to be made you learned about potentially dangerous insects as a child, from books aimed at children. A reasonable person would make this argument. It's also likely that you retained that information because your would-be peers who aren't around, aren't around because their ascendants inserted their genetic material in to the humanity's descent's to a lesser extent than your extant peers. You might not be able to immediately recall where and when you learned something, and that shouldn't be equated with genuinely having no idea.