If anyone is interested, I've updated our take on a cellular basis of the mammalian nocturnal-diurnal switch @biorxivpreprint.bsky.social
We've refined the paper (for the better, hopefully!) - my fave updates are the results from a collab with Zoonomia (Fig 3)
www.biorxiv.org/content/10.1...
Early mammals were nocturnal until the Cretaceous-Paleogene extinction enabled diurnal niche expansion. Diurnality evolved multiple times independently, but the mechanisms driving this shift remain un...
