Intelligence is within all beings, but not all beings are aware of the intelligence within them. Intelligence is consicousness. Intelligence is awareness. Intelligence is information. Intelligence is energy.
When the beings are confronted with a consciously aware being (intelligent being), they may feel the threat as inferiority and they may experience the threat as intimidation or they may even experience the threat as an attack.
They recognise intelligence but they may shun intelligence in another being because of how the intelligence in another being makes them feel about themselves. They may even feel exposed in the presence of that intelligent being. Intelligence can only threaten those who are not thinking for themselves.