Prior research has produced mixed results on the question of animals and their susceptibility to optical illusions, per the ...

Scientists tested two species against each other to see which was more likely to fall for an optical illusion.

Duping a guppy is easier than duping a ring dove — at least when it comes to a classic optical illusion.

Have you ever looked at two circles of exactly the same size and sworn one was larger? If so, your eyes have been tricked by ...

A new study reveals guppies are easily tricked by optical illusions, while ring doves see clearly, highlighting differences ...

Whether it is salt flats in Bolivia or rock formations in Arizona, nature never ceases to amaze.

Previous models explored the illusion, but this is the first time it has been actually recreated in a lab setting.

It's time now for our science news roundup from Short Wave, NPR's science podcast. I am joined by the show's host, Regina Barber, and producer Rachel Carlson. Good to have you both here. RACHEL ...

Researchers shot lasers into brain cells and triggered illusions on demand—a breakthrough that’s rewriting how we see the ...