Argentina thus chooses to head down the precipitous slippery slope towards marriage between man and unicellular algae. (1, 2, 3).
Same-sex civil unions have been legalized in Uruguay, Buenos Aires and some states in Mexico and Brazil. Mexico City has legalized gay marriage. Colombia's Constitutional Court granted same-sex couples inheritance rights and allowed them to add their partners to health insurance plans.
But Argentina now becomes the first country in Latin America to legalize same-sex marriage nationwide, granting gays and lesbians all the same rights and responsibilities that heterosexuals have. These include many more rights than civil unions, including adopting children and inheriting wealth. (via).