Optical illusions: Guppy fish can see visual effects – but not in the same way we do

The way guppy fish behave suggests they can be tricked into believing holes are larger or smaller than they really are – but they don’t always interpret the optical illusions in the same way humans do Life 23 February 2022 By Christa Lesté-Lasserre Two male guppies (Poecilia reticulata) BIOSPHOTO / Alamy Guppies can be fooled … Read more