Yeah the talk kids get is often called “the birds and the bees”

The birds are used to signify mommy making her nest and laying an egg and bees “pollinate flowers”

It’s a metaphor for little kids.

The scientific aspects of the species are moot because it’s a very basic metaphor for how sexy times works.

I’d also like to note that because of how ambiguously and interchangeably everything fits in the analogy I’m POSITIVE the version I’m familiar with is not the only version so it could likely be flip flopped elsewhere.