Because if the predator doesn't know you are there, it is not going to try to eat you.
⇑ Translate the sentence above by Google ⇑
Related: predator
Prev: Equation of predator functional response and estimation of the parameters in it.
Next: He found that strongty-lateralised individuals were able to feed twice as fast as wealdy-lateralised ones when there was a threat of a predator looming above them.
