The wolf shall dwell with the lamb,
and the leopard shall lie down with the young goat,
and the calf and the lion and the fattened calf together;
and a little child shall lead them.
The cow and the bear shall graze;
their young shall lie down together;
and the lion shall eat straw like the ox.
The nursing child shall play over the hole of the cobra,
and the weaned child shall put his hand on the adder's den.
Maybe these animal references, rich and diverse and detailed as they may be, are symbols to illustrate coming peace and reconciliation of enemies (though the specificity and power of the language shows a voice with understanding and attention to animals). But maybe also this is a reminder that animals are a part of God's creation, that they are imbued with dignity, and are included in some way in God's plan of salvation for the world.