Instinct

Lacan follows Freud in distinguishing the instincts from the drives.

Lacan -- following Freud -- distinguishes between instincts and drives.

criticizes those who obscure this distinction by using the same English word ('instinct') to translate both Freud's terms (Instinkt Trieb).

"Instinct" is a biological concept and belongs to the study of aniaml ethology.