Here is the full list of all 20 ANIMAL WELL achievements.
Find 8 secret eggs
Find a new way to get around
Get crushed by a chinchilla
Find the map
Find a secret egg
Find 16 secret eggs
Find 32 secret eggs
Find all secret eggs
Find a secret rabbit
Find the V. flame
Find the P. flame
Find the B. flame
Find the G. flame
Light all candles
Release the Manticore
Pop 1000 bubbles
Leave the well
Sneak up on a squirrel
Find another way to get around
Find a different way to get around