Have you ever seen a walnut with three segments? You usually just see walnut halves that come from a two segment shell.
However, three segment walnuts do exist and I have proof.
I was looking through the walnuts that I picked up yesterday and guess what I found? See: Picking up Walnuts
Can you see the three segments of the shell here? The three segments are not equal. You can see that one segment is the regular half shell and the other side is divided.
I looked to see how common three segment walnuts are, and could only find information that they are rare. I did find a three segment walnut on eBay that was selling for about $15.
You would expect then that I only found one. However, I found two that were three segment in the bag of nuts that I picked up. I also found another walnut that was unevenly divided at about 70/30.
Have you ever found a three segment walnut?
See also: Triple Peanuts