The Impact of Sin: Man Loses Authority (Genesis 1:28)
Bible clearly says in :
Genesis 1:28 (New International Version)
God blessed them and said to them, "Be fruitful and increase in number; fill the earth and subdue it. Rule over the fish of the sea and the birds of the air and over every living creature that moves on the ground."
In fact, we often scare of animals, even tiny one :-)