Biology
Visual Signaling and Color Vision in Jumping Spiders
Quick fact
Jumping spiders have a nearly 360-degree field of view, and their principal eyes can move independently, scanning scenes like tiny sensors—allowing them to perceive colors, including ultraviolet light, which is invisible to humans.
Why this is interesting
Imagine a creature the size of a paperclip that can see colors just as vividly as you do, and uses them to dance for a mate. Jumping spiders do exactly that, with a visual system that seems impossibly advanced for their tiny brains.