t zero (original title: Ti con zero) is a 1967 collection of short stories by Italian author Italo Calvino.

The title story is based on a particularly uncertain moment in the life of a lion hunter.

Other stories in the book diverge to a greater or lesser degree from this scientific theme.

The final story in the collection is a postmodern pastiche of Alexandre Dumas' The Count of Monte Cristo.

This article about a collection of science fiction short stories published in the 1960s is a stub.