shell was far tougher than you expected.
And depending on where you grew up, your family may even have called them something completely different.
But what exactly are they?
The photograph appears to show Brazil nuts still in their hard shells. Their rough, elongated, wedge-like shells are characteristic of Brazil nuts, which are the seeds of the Amazonian tree Bertholletiaexcelsa. USDA inspection guidance describes the
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nuts as having a triangular shell shape because multiple seeds develop packed together inside a much larger fruit.
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And
