Two dashes have been inserted in the right spots as follows: Bioluminescent mushrooms - fungi that can produce and emit light - grow in the rain forests of Puerto Rico and Brazil.
Dashes are symbols that are used to separate unique ideas in a text. In the text above, the two dashes are used to describe the bioluminescent mushrooms further.
Dashes can also be used to separate two complex words that are joined together.
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