Almost all the food we eat today is the result of hybridization (seafood being the main exception). So with pears, the grainy texture is either something someone wanted, or attempts to breed it out had a negative effect on something else (for example, maybe pears with smoother flesh had a shorter storage life).

[removed]

[removed]

Your submission has been removed for the following reason(s):

ELI5 does not allow guessing.

Although we recognize many guesses are made in good faith, if you aren’t sure how to explain please don't just guess. The entire comment should not be an educated guess, but if you have an educated guess about a portion of the topic please make it explicitly clear that you do not know absolutely, and clarify which parts of the explanation you're sure of (Rule 8).

If you would like this removal reviewed, please read the detailed rules first. **If you believe it was removed erroneously, explain why using this form and we will review your submission.

[removed]

Please read this entire message

Your comment has been removed for the following reason(s):

• Top level comments (i.e. comments that are direct replies to the main thread) are reserved for explanations to the OP or follow up on topic questions (Rule 3).

Very short answers, while allowed elsewhere in the thread, may not exist at the top level.

If you would like this removal reviewed, please read the detailed rules first. If you believe it was removed erroneously, explain why using this form and we will review your submission.

Please read this entire message

Your submission has been removed for the following reason(s):

Straightforward or factual queries are not allowed on ELI5. ELI5 is meant for simplifying complex concepts.

If you would like this removal reviewed, please read the detailed rules first. If you believe this submission was removed erroneously, please use this form and we will review your submission.