Optical illusions in the wild

It turns out that not only people are able to manipulate visual perception, but representatives of the animal world own this cunning device and successfully use it for their own purposes. Here are a few amusing examples of visual illusion in the wild.

Some species skillfully use optical illusions to their advantage. For example, males of bird-hunters deceive females, forcing them to think that they are larger than they actually are. For this, the male builds a bizarre gazebo, sometimes in the form of a dome, with a path leading to it and an inner courtyard. When a female stands on the path, he appears before her in all his illusory grandeur.


 
Researchers noticed that they placed stones, bones and sticks in ascending order of their sizes, creating the effect of “forced perception”. This trick can be compared with what we see when looking at the design of the blocks, located on the same principle – from small to large. Could this be pure coincidence? It is unlikely, because even after scientists violated the location of objects, the male restored the order for several weeks.
 
 

In addition, animals often use the features of visual perception for hunting and camouflage.

The angler, or the angler, is one of the most terrible deep-sea fish with a huge toothy mouth. Most females have a protruding appendage on their heads, resembling a fleshy glowing worm. In dark sea depth, the anglers use it to lure unsuspecting prey and then catch it with their “built-in fishing rod.”
 

 
The use of optical illusions for masking is also often found in nature. For example, the larva of a giant butterfly mahaon looks like a piece of excrement.


 
If we talk about “camouflage”, then some types of owls masterfully hide in trees, almost merging with them. For example, the North American owl is beautifully camouflaged in secluded corners and cracks in trees.