Barn owl chicks are always hungry. So their parents have to feed them all the time. Owls aren't the only animals that come out at night. Lots of other animals are nocturnal too. Prickly hedgehogs ...

That’s in contrast to diurnal animals — or those which are awake during the day and asleep at night. It’s also distinct from ...

In 1893, Shiras captured the first known night-time photograph of animals, a striking image of three deer leaping away from the burst of his flash. Over the following decades Shiras’ night ...