What is a red deer thinking?
Standing perfectly still in the mist, fully aware of the effect.
Deer eyes are built for detecting motion across a very wide field rather than for resolving detail. A deer that freezes is not hiding from you so much as waiting for you to move, because movement is the thing it can actually read.
It is also listening. The ears swivel independently while the body stays locked, and the decision to leave is usually made well before there is anything for you to notice.
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