Photo Credits
little-goat
from Shutterstock.com used under Royalty Free
little-horse
from Shutterstock.com used under Royalty Free
sheep
from Shutterstock.com used under Royalty Free
big-donkey
from Shutterstock.com used under Royalty Free
big-goat
from Shutterstock.com used under Royalty Free
horse
from Shutterstock.com used under Royalty Free
lamb
by David Padfield from © 2015 David Padfield, the LUMO Project or WikiMedia Commons used under Creative Commons BY-NC 4.
little-donkey
from Shutterstock.com used under Royalty Free
bull
from Shutterstock.com used under Royalty Free
cow
from Shutterstock.com used under Royalty Free
donkey
from Shutterstock.com used under Royalty Free
goat
from Shutterstock.com used under Royalty Free