Here’s where it gets wild. When you have six or more authors, you skip the full list altogether—even the first time. You just write the first author’s name followed by “et al.” Boom. Done.
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Imagine naming all 12 members of a football team every time you mention the team. That’s madness. Instead, you just say “Quarterback Johnson et al.” and everyone knows you mean the whole squad.
This rule exists because modern research often has huge teams. Astronomers, for example, might have 50 co-authors on a single paper. You’d need a whole paragraph just to cite them. Et al. is your escape hatch from citation prison.