Another example other than birds are squirrels, for example. To clarify what I mean: If you make a noise around them, these animals will suddenly, and very quickly, turn their head towards you. Then, after a couple of seconds, they will turn it away again, in the same sudden, unsmooth way. How come they can’t make smooth movements, and instead just move like a robot?
In: 9
Because they need to hold very still to 1. Not be visible and 2. Hear and see clearly.
Lots of animals can’t move their eyes or ears so they need to turn their head, then hold still to take note of their surroundings, listen and look for predators or prey. Also holding still let’s their camouflage protect them, so they move quickly then freeze again.
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