Animals don't have souls.
Living Animals are living souls:
Num_31:28 And levy a tribute unto the LORD of the men of war which went out to battle: one
soul of five hundred,
both of the persons, and of
the beeves, and of the asses, and of the sheep:
Rev_16:3 And the second angel poured out his vial upon the sea; and it became as the blood of a dead man: and
every living soul died in the sea.
Neither is worshipped with men's hands, as though he needed any thing, seeing
he giveth to all life, and breath, and all things; Acts 17:25
In whose hand is the soul of every living thing, and the breath of all mankind. Job 12:10
But
if the priest buy any soul with his money,
he shall eat of it, and he that is born in his house:
they shall eat of his meat. Leviticus 22:11
See
Joshua 10, in every instance where it is written that Joshua destroyed "all the souls that were therein":
"...he utterly destroyed, them, and
all the souls that were therein..." Joshua 10:28
"...he smote it with the edge of the sword, and
all the souls that were therein; he let none remain in it..." Joshua 10:30
"...and smote it with the edge of the sword, and
all the souls that were therein..." Joshua 10:32
"...smote it with the edge of the sword, and
all the souls that were therein he utterly destroyed that day..." Joshua 10:35
And they took it, and smote it with the edge of the sword, and the king thereof, and all the cities thereof, and
all the souls that were therein; he left none remaining, according to all that he had done to Eglon; but
destroyed it utterly, and all the souls that were therein. Joshau 10:37
"And he took it, and the king thereof, and all the cities thereof; and they smote them with the edge of the sword, and
utterly destroyed all the souls that were therein; he left none remaining..." Joshua 10:39
So Joshua smote all the country of the hills, and of the south, and of the vale, and of the springs, and all their kings:
he left none remaining, but utterly destroyed all that breathed, as the LORD God of Israel commanded. Joshua 10:40
...just as Joshua did to Jericho, so he did to those cities, "And
they utterly destroyed all that was in the city, both man and woman, young and old, and
ox, and sheep, and ass, with the edge of the sword." Joshua 6:21
...just as Joshua did to Haxor, so he did to those cities, "And
they smote all the souls that were therein with the edge of the sword, utterly destroying them: there
was not any left to breathe: and he burnt Hazor with fire." Joshua 11:11