What God had determined for the animals of the earth, would be, because He commanded it (Isaiah 34:13-16), for He said also,

“He has cast the lot for them, and His hand has divided it among them with a measuring line. They shall possess it forever; from generation to generation they shall dwell in it” (Isaiah 34:17).

Therefore, rest peacefully, knowing that whatever God has promised and commanded, He shall do.