The Inner Clock
New Insights into Animal Behavior from the Little Penguin
The little penguin (Eudyptula minor), a small, vibrant bird native to the southern coast of Australia, showcases remarkable timekeeping abilities as it scurries from the ocean to its burrow at twilight—precisely after sunset each day. Timing is essential for these penguins; arriving too early means missing the last fishing opportunity, while delaying their return can expose them to predators like orcas and feral cats.
For observers, these well-timed excursions highlight the significance of environmental cues, such as sunlight and the changing phases of the moon, in guiding their daily routines.
