A new analysis of honeybee vision suggests their ability to distinguish quantities is not a trick of visual patterns, but evidence of genuine numerical cognition shaped by how their brains see the world. Understanding the mechanisms underlying animal cognition requires experimental designs and analyses that respect the biological and perceptual constraints of the species being…
Dozens of people with glaucoma-like symptoms have tested positive for a virus that we thought affected only marine life Virginie Vaes/Getty Images A virus that ordinarily affects marine animals has caused glaucoma-like symptoms and even irreversible vision loss in a small but growing group of people in China. This is the first known time that…
Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent six days a week. A new optical illusion excellently illustrates just how finicky our eyes are when it comes to perceiving colors. Unfortunately, staring at it too long with a friend may kick off an argument much like The Dress did in 2015….
