This study aims to illustrate how the issue of animals and animalism is dealt with in Andrej Tarkovsky’s films.In particular,it is Tarkovsky’s idea of time,as a non-symbolic dimension,which recognises the impossibility of a distinction between mankind and animals.It is precisely this impossibility which allows us to isolate the‘animal issue’in the filmography of the Russian director and to study it in its manifold metamorphoses,whilst preventing us from taking on Tarkovsky’s bestiary in its entirety and following the alphabetical order which is usually typical of any cataloguing.Tarkovsky's bestiary is a modern one,in which the ancient allegorical tension associated with animals changes sign and dissolves in favour of a borderland where,in lieu of beasts in their purest form,crossbreeding and transformations between humans and animals can be found.Both are connected through an ancient story which,in our opinion,finds an interesting balance precisely in the films of the Russian director.