To the human eye, many edible plants have a poisonous plant look alike. We can distinguish the two after research and learning but how do animals just know the difference?
In: Biology
It is their natural instinct. Their sensory system is hardwired with built-in hardware to recognize safe and unsafe. In the brain is a main sensor that communicates back and forth within itself like a fast pendulum in yes/no fashion, if it is a yes it will signal a go ahead when it *recognizes* a familiar pattern, color, smell, shape. This is the go-ahead to proceed and eat. If one of those steps are not checked, there is no match and the plant is passed by.
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