这些研究没有包括松仁或者巴西坚果。
最近，科学家们发现了一种青蛙，它们在空的巴西坚果荚里养育后代。
Recently, scientists discovered a species of frog specialized only for breeding inside empty Brazil nut pods.
它们包括支持那些传统的割胶工人、巴西坚果的采集者，或者用来悉心管理热带雨林。
They might include supporting traditional rubber tappers and gatherers of Brazil nuts, or carefully managed forestry.
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