MIT physicists snap the first images of "free-range" atoms

> The researchers directly observed atoms known as “bosons,” which bunched up in a quantum phenomenon to form a wave. They also captured atoms known as “fermions”...

Is this a typo? Aren't those subatomic particles? This is repeated throughout the article.

...the linked paper[1] is titled: Measuring Pair Correlations in Bose and Fermi Gases via Atom-Resolved Microscopy

Maybe i am missing something? i can only read the abstract.

[1] https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.13...