The D minor scale has 7 notes: D – E – F – G – A – B♭ – C. The natural minor scale (Aeolian mode) is the sad, serious sound of the minor key. It is the major scale started on its sixth note, so every minor key shares its notes with a major key three frets higher.
Compared with the D major scale it has ♭3 (F instead of F♯), ♭6 (B♭ instead of B), ♭7 (C instead of C♯). It has exactly the same notes as F major, started from a different root.
The explorer above is set to D minor: the whole neck is mapped, and you can zoom into any of its 7 positions, change the labels to degrees or fingers, and hear it up, down and in patterns.