Since I moved to @mrclmb.bsky.social I’ve been trying to answer this: Why are some mammals active at night and others in the day? Today our answer is out @science.org www.science.org/doi/10.1126/....
If you’re interested in circadian biology, evolution or how timing shapes physiology, take a look
Early mammals were nocturnal while dinosaurs dominated the daytime. Mammalian transition to daytime activity accelerated after the Cretaceous-Paleogene extinction, but the underlying mechanisms remain...