HEROIC Some microbes are newsworthy because they help fight diseases, control pollution, or perform some other useful function.	DANGEROUS Others are notorious for causing diseases, creating hazardous substances, or posing some threat to other living things.
ANCIENT Many microorganisms have captured the public interest recently because of discoveries related to their great age.	STRANGE Some microbes grab attention because of their immense size, bizarre diet, or other unusual characteristics.

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