[Gingeas]

Interesting point - even though some animals might thrive in the dark, the food chain can also be undermined in a way that it topples the foundation of the members above, thus indirectly destroying it.

Owls consume rodents such as squirrels, rats, and mice, which are nocturnal.

Kiwis eat grubs and worms - only the latter of which I know can be nocturnal.