If you dream about taxidermy, some aspect of yourself is being repressed.
You may feel that you are not able to fully express your desires and emotions.
This dream may also reveal an immature attitude in the dreamer.
Are you trying to escape from your daily responsibilities and problems?
This is especially true if the stuffed animal in your dream was scary.
If you dream of killing an animal and/or doing taxidermy yourself, something you are doing in real life goes against your values and you are hurting a sweet part of yourself.
You must change your behavior and stop acting against your instincts or a part of yourself will be lost or damaged.