Being that we are extant mammals we are evolved from nocturnal animals, just that not recently. Primates diverged to be more diurnal. https://en.wikipedia.org/

Being that we are extant mammals we are evolved from nocturnal animals, just that not recently. Primates diverged to be more diurnal. https://en.wikipedia.org/wiki/Nocturnal_bottleneck https://en.wikipedia.org/wiki/Nocturnal_bottleneck