Biology
Circadian Rhythms and Nocturnal Foraging in Primates
Quick fact
Aye-ayes use moonlight to find food but actually reduce their foraging on the brightest moonlit nights, likely to avoid predators; some nocturnal primates can reset their activity peaks by up to six hours following seasonal changes.
Why this is interesting
You might think all nocturnal animals simply wake at dusk and forage, but many have internal clocks that are remarkably flexible. How do they decide when to venture out, especially when moonlight or clouds change nightly?