Dorsum in a sentence as a noun

The dorsum to the light fact is interesting. And now, watching some random moth to the light vids on Youtube makes more sense to me [1].

Instead, insects turn their dorsum toward the light, generating flight bouts perpendicular to the source. Under natural sky light, tilting the dorsum towards the brightest visual hemisphere helps maintain proper flight attitude and control.

Dorsum definitions

noun

the posterior part of a human (or animal) body from the neck to the end of the spine; "his back was nicely tanned"

See also: back

noun

the back of the body of a vertebrate or any analogous surface (as the upper or outer surface of an organ or appendage or part); "the dorsum of the foot"