Pope Benedict has taken a swipe at countries considering legalizing gay marriage. On Tuesday, he said that gay marriage threatens creation.

Benedict made his comments in a speech to more than 170 diplomats at the Vatican, Reuters reported.

“Creatures differ from one another and can be protected, or endangered in different ways, as we know from daily experience. One such attack comes from laws or proposals, which, in the name of fighting discrimination, strike at the biological basis of the differences between the sexes,” he said.

“I am thinking, for example, of certain countries in Europe or North and South America,” he added.

On Friday, lawmakers in Portugal gave a gay marriage bill an initial approval. Mexico City is preparing to begin gay weddings in February after its mayor refused to block a recently approved law. And Latin American's first gay marriage took place in Argentina last month.

All three countries are deeply Roman Catholic.

The Holy Father has called for the ouster of Socialists in Spain after party leaders approved a gay marriage law in 2005. Benedict is also expected to visit Portugal in May, shortly after lawmakers say they expect to approve a gay marriage law.