A reader wrote to me recently with an interesting question: can animals see things that are invisible to humans? She had noticed certain aspects of her pets' behaviour that made her wonder. Before ...

Imagine stepping into a world where hidden colours and patterns come to life—a realm of vibrant UV signals and secret messages invisible to human eyes. While human vision is limited to the visible ...

Step into a world unseen by human eyes, where animals like bumblebees and butterflies perceive vibrant UV signals. These species use ultraviolet vision to navigate, hunt, and communicate. Reindeer ...