ARMS, XMIRAAL, MZNIRQF
Make a chart with all the letters of the alphabet
in one column. Those will be the code letters.
From the code spelling of LEOPARD, fill in the
correct letters for all the code letters you can.
Then start figuring out the other code animals
in order, filling in more letters on the chart
as you go along. (You may have to do a little
By the time you get to WALTRSXM (FLAMINGO),
you'll have every letter you need. Then simply
use your chart to write the additional three animal
names in the same code.