Flying slowly and silently through the night sky, barn owls are majestic nocturnal hunters that successfully prey on rodents scurrying along the ground below. Scientists have long puzzled over a ...

I love how humans use figures of speech about animals to describe their behavior. An early bird is someone who likes to get up early. A night owl is someone who loves to be awake late at night – like ...

The vast majority of birds are diurnal, meaning that they are active during the day and sleep at night. Truly nocturnal species make up a small minority; these birds stay awake at night to hunt, fly ...

The Great Grey Owl practices tireless hunting efforts. This has to do with the owl’s decision not to migrate, but instead to remain in the same location year-round. Consequently, during the winter, ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Flying slowly and ...